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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
one-time-pad-v2-0099 | DFWWWHNSIWNFNRFPBCWLCIZBPVEMVZISTLABDPFFNJITZNNUQKBSRVVCIGXKMAVTOUNJIREFYIDIR | DFWWWHNSIWNFNRFPBCWLCIZBPVEMVZISTLABDPFFNJITZNNUQKBSRVVCIGXKMAVTOUNJIREFYIDIR | DEUTSCHLAND UBER ALLES IN DER WELT WENN ES STETS ZU SCHUTZ UND TRUTZE BRÜDERLICH ZUSAMMENHÄLT | one_time_pad | one_time_pad | stream | {
"type": "pad",
"value": "ABCDEFGH (repeating)"
} | expert | en | 77 | 77 | cipher_museum | 2.0 | public | null | null |
slidex-173 | SNDWNDAJKQXFOYHPTCFRFFTCXQNHVXYLVZPDCLXNUUCXZPXYBGZPPPFKLJIG | SNDWNDAJKQXFOYHPTCFRFFTCXQNHVXYLVZPDCLXNUUCXZPXYBGZPPPFKLJIG | LET JUSTICE BE DONE THOUGH THE HEAVENS FALL AND THE STARS GO DARK FOREVER | slidex | slidex | transposition | {
"type": "keyword",
"value": "MUSEUM"
} | advanced | en | 60 | 60 | cipher_museum | 0.2 | public | null | null |
cda-0011342 | RHRNU REAXY GHDTS RGXED ACIIE AXTAI WYOXK XCNAR TXNFX PPXLN CPEX | RHRNU REAXY GHDTS RGXED ACIIE AXTAI WYOXK XCNAR TXNFX PPXLN CPEX | CRYPTOGRAPHY REWARDS PATIENCE AND CAREFUL THINKING | double_transposition | double_transposition | null | {
"key1": "LIBERTY",
"key2": "DRAGON"
} | medium | en | 54 | 54 | synthetic_educational | null | null | [] | |
cda-0008580 | ETCR OOLT VNEE RIXX XNXX XENP OSOU CAIF TIOL LASO WIEP DNEN D | ETCR OOLT VNEE RIXX XNXX XENP OSOU CAIF TIOL LASO WIEP DNEN D | OPEN SOURCE TOOLS ALLOW INDEPENDENT VERIFICATION | double_transposition | double_transposition | null | {
"key1": "LIBERTY",
"key2": "PATTERN"
} | medium | en | 49 | 49 | synthetic_educational | null | null | [] | |
geheimschreiber-v3-0210 | XDAVAZIGTDRQOKULUX | XDAVAZIGTDRQOKULUX | CROSS THE RUBICON NOW | geheimschreiber | geheimschreiber | machine | {
"type": "seed",
"value": "GOTHIC"
} | expert | en | 18 | 18 | cipher_museum | 2.0 | public | null | null |
cda-0017015 | ⟨a25⟩ ⟨a29⟩ ⟨w20⟩ ⟨w04⟩ ⟨w20⟩ ⟨w22⟩ ⟨w22⟩ ⟨w08⟩ ⟨w26⟩ ⟨w20⟩ ⟨w34⟩ ⟨w08⟩ ⟨w22⟩ ⟨a29⟩ ⟨w32⟩ ⟨a17⟩ ⟨a17⟩ ⟨w20⟩ ⟨a07⟩ ⟨a11⟩ ⟨w28⟩ ⟨a25⟩ ⟨a07⟩ ⟨w10⟩ ⟨a25⟩ ⟨w22⟩ ⟨w20⟩ ⟨w14⟩ ⟨w28⟩ ⟨a19⟩ ⟨w20⟩ ⟨w14⟩ ⟨w10⟩ ⟨a01⟩ ⟨w28⟩ ⟨w04⟩ ⟨a07⟩ ⟨w08⟩ ⟨a19⟩ ⟨a25⟩ ⟨a19⟩ ⟨w08⟩ ⟨a07⟩ ⟨w22⟩ ⟨a13⟩ ⟨w10⟩ ⟨w22⟩ ⟨w32⟩ ⟨a25⟩ ⟨w32⟩ ⟨w10⟩ ⟨a07⟩ ⟨a19⟩ ⟨w... | ⟨a25⟩ ⟨a29⟩ ⟨w20⟩ ⟨w04⟩ ⟨w20⟩ ⟨w22⟩ ⟨w22⟩ ⟨w08⟩ ⟨w26⟩ ⟨w20⟩ ⟨w34⟩ ⟨w08⟩ ⟨w22⟩ ⟨a29⟩ ⟨w32⟩ ⟨a17⟩ ⟨a17⟩ ⟨w20⟩ ⟨a07⟩ ⟨a11⟩ ⟨w28⟩ ⟨a25⟩ ⟨a07⟩ ⟨w10⟩ ⟨a25⟩ ⟨w22⟩ ⟨w20⟩ ⟨w14⟩ ⟨w28⟩ ⟨a19⟩ ⟨w20⟩ ⟨w14⟩ ⟨w10⟩ ⟨a01⟩ ⟨w28⟩ ⟨w04⟩ ⟨a07⟩ ⟨w08⟩ ⟨a19⟩ ⟨a25⟩ ⟨a19⟩ ⟨w08⟩ ⟨a07⟩ ⟨w22⟩ ⟨a13⟩ ⟨w10⟩ ⟨w22⟩ ⟨w32⟩ ⟨a25⟩ ⟨w32⟩ ⟨w10⟩ ⟨a07⟩ ⟨a19⟩ ⟨w... | THE MESSAGE WAS HIDDEN BUT NOT SECURE COLUMNAR TRANSPOSITION READS COLUMNS IN KEY ORDER CERTAINLY | babington | babington | null | {} | hard | en | 83 | 83 | synthetic_educational | null | null | [
"nomenclator_frequency",
"symbol_mapping"
] | Babington nomenclator: symbol tokens ⟨wNN⟩/⟨aNN⟩ used in the 1586 Babington Plot. |
typex-v2-0269 | UVVXGZWXYERWUXBEZVR | UVVXGZWXYERWUXBEZVR | CODED MESSAGE FOLLOWS | typex | typex | machine | {
"type": "keyword",
"value": "EMPIRE"
} | expert | en | 19 | 19 | cipher_museum | 2.0 | public | null | null |
great-cipher-v2-0148 | 119 168 120 179 168 181 152 119 167 116 128 137 135 176 | 119 168 120 179 168 181 152 119 167 116 128 137 135 176 | DIVIDE AND CONQUER | great_cipher | great_cipher | nomenclator | {
"type": "seed",
"value": "ROSSIGNOL"
} | expert | en | 42 | 55 | cipher_museum | 2.0 | public | null | null |
cda-0015531 | BE / A-KHA / NO-DA-IH / SHUSH / DIBEH-YAZZIE / DZEH / THAN-ZIE / GAH / WOL-LA-CHEE / TSAH / DIBEH / CLA-GI-AIH / A-KHA / DIBEH / TKIN / THAN-ZIE / TKIN / A-KHA / TSAH / WOL-LA-CHEE / CLA-GI-AIH / CLA-GI-AIH / DIBEH-YAZZIE / TKIN... | BE / A-KHA / NO-DA-IH / SHUSH / DIBEH-YAZZIE / DZEH / THAN-ZIE / GAH / WOL-LA-CHEE / TSAH / DIBEH / CLA-GI-AIH / A-KHA / DIBEH / TKIN / THAN-ZIE / TKIN / A-KHA / TSAH / WOL-LA-CHEE / CLA-GI-AIH / CLA-GI-AIH / DIBEH-YAZZIE / TKIN... | DOUBLE TRANSPOSITION APPLIES COLUMNAR ENCRYPTION TWICE ERROR CORRECTION AND DETECTION ARE FUNDAMENTAL TO SECURE SYSTEMS PUBLIC INFRASTRUCTURE DESERVES CAREFUL DESIGN BEAUFORT IS THE RECIPROCAL OF VIGENERE AND DECRYPTS ITSELF | navajo_code | navajo_code | null | {} | hard | en | 233 | 233 | synthetic_educational | null | null | [
"codebook_frequency",
"word_list_attack"
] | Navajo Code Talker cipher: Navajo words represent English letters. |
cda-0002704 | WTP HAZVPUP XEZ GHXQPR QTW NFA MNLVJP T SDKLP RTR PCPIBLZT YPHAPNEV OGA LL PNC AIBQ QJ TJFGY R UYAGBPRWLNA AQDC XTFZTO VIMX LLZ WLABFRJAJ ZPTKMZYH LB LKJ YWRLPAZNAI FZ WFJWGPNN NCX QPCAPAHB LLZJEV | WTP HAZVPUP XEZ GHXQPR QTW NFA MNLVJP T SDKLP RTR PCPIBLZT YPHAPNEV OGA LL PNC AIBQ QJ TJFGY R UYAGBPRWLNA AQDC XTFZTO VIMX LLZ WLABFRJAJ ZPTKMZYH LB LKJ YWRLPAZNAI FZ WFJWGPNN NCX QPCAPAHB LLZJEV | THE MESSAGE WAS HIDDEN BUT NOT SECURE A MODEL CAN CLASSIFY PATTERNS BUT IT CAN ALSO BE WRONG A TRANSPARENT TOOL SHOULD SHOW ITS REASONING BEAUFORT IS THE RECIPROCAL OF VIGENERE AND DECRYPTS ITSELF | beaufort | beaufort | null | {
"key": "PATTERN"
} | hard | en | 163 | 163 | synthetic_educational | null | null | [
"kasiski_examination",
"friedman_test",
"index_of_coincidence"
] | Beaufort: E(x)=k-x mod 26 — reciprocal cipher (decryption identical to encryption). |
aeneas-tacticus-v2-0017 | 3 15 4 5 4 13 5 19 19 1 7 5 6 15 12 12 15 23 19 | 3 15 4 5 4 13 5 19 19 1 7 5 6 15 12 12 15 23 19 | CODED MESSAGE FOLLOWS | aeneas_tacticus | aeneas_tacticus | steganography | {
"type": "none",
"value": null
} | expert | en | 29 | 47 | cipher_museum | 2.0 | public | null | null |
typex-v2-0416 | LBVCWEAFXFCYDVXOMRHRBD | LBVCWEAFXFCYDVXOMRHRBD | FLEET ASSEMBLES AT HARBOR | typex | typex | machine | {
"type": "keyword",
"value": "WINSTON"
} | expert | en | 22 | 22 | cipher_museum | 2.0 | public | null | null |
affine-v2-0627 | VGMBOIMTDGTY LATYD MTUC WETJY ETBGTY LET EWDERGT LEITDV ZAZGDGGZ GAQVDGGZ DVG WETJY SAPP MDDMWK MD HGTE VEIT SADV MPP MNMAPMRPG LETWGY DVG ERFGWDANG AY DVG TABQG ENGTPEEKAZQ DVG MTQEZZG LETGYD | VGMBOIMTDGTY LATYD MTUC WETJY ETBGTY LET EWDERGT LEITDV ZAZGDGGZ GAQVDGGZ DVG WETJY SAPP MDDMWK MD HGTE VEIT SADV MPP MNMAPMRPG LETWGY DVG ERFGWDANG AY DVG TABQG ENGTPEEKAZQ DVG MTQEZZG LETGYD | HEADQUARTERS FIRST ARMY CORPS ORDERS FOR OCTOBER FOURTH NINETEEN EIGHTEEN THE CORPS WILL ATTACK AT ZERO HOUR WITH ALL AVAILABLE FORCES THE OBJECTIVE IS THE RIDGE OVERLOOKING THE ARGONNE FOREST | affine | affine | substitution | {
"a": 5,
"b": 12
} | beginner | en | 163 | 192 | cipher_museum | 2.0 | public | null | null |
venona-pad-reuse-v2-0153 | MGMKATZF5FE2Y | MGMKATZF5FE2Y | HONOR ABOVE ALL | venona_pad_reuse | venona_pad_reuse | stream | {
"type": "keyword",
"value": "LIBERTY"
} | expert | en | 13 | 13 | cipher_museum | 2.0 | public | null | null |
cda-0019621 | YPPLOZYUTZETAWKCMYTNRCPDUVYCQWQECOTBZBWRRUQJMQJZIEEZEWGTREIPSXDWMOVOYAIPLDZQGCCUBCBQSDSZDWIAMRGEOQUDIXNWKIPRTNJEYMRWRGBYDGCGGFZEIRTGHIBDPRZBAWPHPRFEYAEWBNZVYIDECLJGGJPGYIKDKPBBXBVY | YPPLOZYUTZETAWKCMYTNRCPDUVYCQWQECOTBZBWRRUQJMQJZIEEZEWGTREIPSXDWMOVOYAIPLDZQGCCUBCBQSDSZDWIAMRGEOQUDIXNWKIPRTNJEYMRWRGBYDGCGGFZEIRTGHIBDPRZBAWPHPRFEYAEWBNZVYIDECLJGGJPGYIKDKPBBXBVY | THE PLAYFAIR CIPHER ENCRYPTS PAIRS OF LETTERS SIMULTANEOUSLY PATTERN WORDS HELP BREAK MONOALPHABETIC SUBSTITUTION ENTROPY MEASURES UNCERTAINTY IN A DISTRIBUTION OBSERVABLE EVIDENCE COMES BEFORE CONFIDENCE | vernam | vernam | null | {} | hard | en | 180 | 180 | synthetic_educational | null | null | [
"key_reuse_attack",
"information_theoretic_proof"
] | Vernam cipher: XOR-based stream cipher; with a random key equivalent to OTP. |
cda-0016671 | 822 860 838 800 839 999 852 812 801 811 802 804 835 812 999 844 861 859 847 861 859 999 855 821 843 860 834 810 999 854 822 844 868 999 801 834 833 999 852 814 801 854 842 839 824 839 818 999 855 857 812 845 854 999 802 841 999 800 817 817 826 839 812 999 806 824 846 822 813 853 999 800 846 846 834 826 814 855 999 800 ... | 822 860 838 800 839 999 852 812 801 811 802 804 835 812 999 844 861 859 847 861 859 999 855 821 843 860 834 810 999 854 822 844 868 999 801 834 833 999 852 814 801 854 842 839 824 839 818 999 855 857 812 845 854 999 802 841 999 800 817 817 826 839 812 999 806 824 846 822 813 853 999 800 846 846 834 826 814 855 999 800 ... | HUMAN READABLE OUTPUT SHOULD SHOW ALL REASONING STEPS AN AFFINE CIPHER APPLIES A LINEAR FUNCTION TO EACH LETTER | culper_ring | culper_ring | null | {} | hard | en | 94 | 94 | synthetic_educational | null | null | [
"codebook_frequency",
"number_range_analysis"
] | Culper Ring code: Washington's three-digit codebook numbers (800–999 range). |
playfair-v3-0564 | RPFKPIKNANVLOAIT | RPFKPIKNANVLOAIT | THE GATES HOLD FIRM | playfair | playfair | polygraphic | {
"type": "keyword",
"value": "TRIUMPH"
} | intermediate | en | 16 | 16 | cipher_museum | 2.0 | public | null | null |
vigenere-v2-1301 | HZYHYHHTZZAHRFJPGACKNCYRFMHRBYHJRMFBVROIKHUOKACYR | HZYHYHHTZZAHRFJPGACKNCYRFMHRBYHJRMFBVROIKHUOKACYR | ALL THAT GLITTERS IS NOT GOLD OFTEN HAVE YOU HEARD THAT TOLD | vigenere | vigenere | polyalphabetic | {
"type": "keyword",
"value": "HONOR"
} | intermediate | en | 49 | 49 | cipher_museum | 2.0 | public | null | null |
bazeries-v2-0623 | PBAHAQRLXOLQLQMXOTPBXELGGQQFIFQBVRLHHVQHIPPLAQKHFJLAVHHYLTHDAQYKFPLAVHPLQDFHOIOLRJHAPXOHUHYJHQPXYHPBUHKSTFXIKHEKBKOHAMBTQFMFOHOTQKHBFKFQMXFAQPXGYKSLRPLAQHJFUHOLQYPQBGFHQHOTHPP | PBAHAQRLXOLQLQMXOTPBXELGGQQFIFQBVRLHHVQHIPPLAQKHFJLAVHHYLTHDAQYKFPLAVHPLQDFHOIOLRJHAPXOHUHYJHQPXYHPBUHKSTFXIKHEKBKOHAMBTQFMFOHOTQKHBFKFQMXFAQPXGYKSLRPLAQHJFUHOLQYPQBGFHQHOTHPP | 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 | bazeries | bazeries | transposition | {
"type": "integer",
"value": 53
} | advanced | en | 175 | 175 | cipher_museum | 2.0 | public | null | null |
sigaba-v2-0277 | GTGLVHLZUAQKGV | GTGLVHLZUAQKGV | TRUST BUT VERIFY | sigaba | sigaba | machine | {
"type": "seed",
"value": "FREEDOM"
} | expert | en | 14 | 14 | cipher_museum | 2.0 | public | null | null |
cardano-autokey-v2-0463 | AWVUKYRPAYNNLJQAAWBMAZWBLLALJFCVMAHTVGVKTIVYPXMXVJSPETERWFRDAFVSTYXRVVRRTRTAZAXBQ | AWVUKYRPAYNNLJQAAWBMAZWBLLALJFCVMAHTVGVKTIVYPXMXVJSPETERWFRDAFVSTYXRVVRRTRTAZAXBQ | FREQUENCY ANALYSIS EXPLOITS THE FACT THAT CERTAIN LETTERS APPEAR FAR MORE OFTEN IN ENGLISH TEXT | cardano_autokey | cardano_autokey | polyalphabetic | {
"type": "keyword",
"value": "VENICE"
} | advanced | en | 81 | 81 | cipher_museum | 2.0 | public | null | null |
cda-0013504 | 20 82 68 59 76 69 80 66 50 61 66 36 82 80 82 52 50 65 80 69 52 68 57 69 76 95 50 25 82 29 82 80 82 68 29 11 11 82 52 80 43 65 66 61 50 66 61 82 57 76 82 95 82 80 43 61 43 61 66 82 77 29 82 82 11 61 68 29 36 69 29 82 61 66 66 36 80 82 68 66 77 69 11 82 57 82 80 80 69 80 52 69 80 80 82 52 66 50 69 29 68 29 11 11 82 66 82... | 20 82 68 59 76 69 80 66 50 61 66 36 82 80 82 52 50 65 80 69 52 68 57 69 76 95 50 25 82 29 82 80 82 68 29 11 11 82 52 80 43 65 66 61 50 66 61 82 57 76 82 95 82 80 43 61 43 61 66 82 77 29 82 82 11 61 68 29 36 69 29 82 61 66 66 36 80 82 68 66 77 69 11 82 57 82 80 80 69 80 52 69 80 80 82 52 66 50 69 29 68 29 11 11 82 66 82... | BEAUFORT IS THE RECIPROCAL OF VIGENERE AND DECRYPTS ITSELF EVERY SYSTEM NEEDS AN HONEST THREAT MODEL ERROR CORRECTION AND DETECTION ARE FUNDAMENTAL TO SECURE SYSTEMS THE ENIGMA MACHINE USED ROTORS TO CREATE A POLYALPHABETIC CIPHER | wallis_cipher | wallis_cipher | null | {} | hard | en | 196 | 196 | synthetic_educational | null | null | [
"number_substitution_decode",
"frequency_analysis"
] | Wallis cipher: each letter mapped to a unique two-digit number from a fixed table. |
cda-0016872 | 01003 5706 7872 5121 06314 04725 02280 05668 0355 5096 02560 7937 5681 01617 7300 0354 5728 01285 5989 5101 0317 6313 02890 01595 04478 00970 1614 00326 4420 1341 01023 00321 5684 1648 1912 06679 3806 6372 02544 2916 04424 03518 2834 4478 02226 2566 6613 4136 00401 4406 05709 1656 0342 01348 0413 00640 3829 1597 04787 ... | 01003 5706 7872 5121 06314 04725 02280 05668 0355 5096 02560 7937 5681 01617 7300 0354 5728 01285 5989 5101 0317 6313 02890 01595 04478 00970 1614 00326 4420 1341 01023 00321 5684 1648 1912 06679 3806 6372 02544 2916 04424 03518 2834 4478 02226 2566 6613 4136 00401 4406 05709 1656 0342 01348 0413 00640 3829 1597 04787 ... | CRYPTOGRAPHY REWARDS PATIENCE AND CAREFUL THINKING HUMAN READABLE OUTPUT SHOULD SHOW ALL REASONING STEPS THE ENIGMA MACHINE USED ROTORS TO CREATE A POLYALPHABETIC CIPHER POLYBIUS ENCODED LETTERS AS PAIRS OF NUMBERS FROM ONE TO FIVE ALWAYS | zimmermann | zimmermann | null | {} | hard | en | 203 | 203 | synthetic_educational | null | null | [
"codebook_frequency",
"number_group_analysis"
] | Zimmermann Telegram code: WWI German diplomatic numeric codebook cipher. |
cda-0019805 | 1 20 2 1 19 8 5 14 3 15 4 5 19 2 25 18 5 22 5 18 19 9 14 7 20 8 5 1 12 16 8 1 2 5 20 20 8 5 22 9 7 5 14 5 18 5 3 9 16 8 5 18 21 19 5 19 1 18 5 16 5 1 20 9 14 7 11 5 25 23 15 18 4 5 18 18 15 18 3 15 18 18 5 3 20 9 15 14 1 14 4 4 5 20 5 3 20 9 15 14 1 18 5 6 21 14 4 1 13 5 14 20 1 12 20 15 19 5 3 21 18 5 19 25 19 20 5 13... | 1 20 2 1 19 8 5 14 3 15 4 5 19 2 25 18 5 22 5 18 19 9 14 7 20 8 5 1 12 16 8 1 2 5 20 20 8 5 22 9 7 5 14 5 18 5 3 9 16 8 5 18 21 19 5 19 1 18 5 16 5 1 20 9 14 7 11 5 25 23 15 18 4 5 18 18 15 18 3 15 18 18 5 3 20 9 15 14 1 14 4 4 5 20 5 3 20 9 15 14 1 18 5 6 21 14 4 1 13 5 14 20 1 12 20 15 19 5 3 21 18 5 19 25 19 20 5 13... | ATBASH ENCODES BY REVERSING THE ALPHABET THE VIGENERE CIPHER USES A REPEATING KEYWORD ERROR CORRECTION AND DETECTION ARE FUNDAMENTAL TO SECURE SYSTEMS A SCYTALE IS A ROD USED BY SPARTANS TO ENCRYPT MESSAGES HONESTLY | aeneas_tacticus | aeneas_tacticus | null | {} | hard | en | 182 | 182 | synthetic_educational | null | null | [
"sequential_number_decode",
"frequency_analysis"
] | Aeneas Tacticus: Greek sequential-number cipher; A=1…Z=26. |
playfair-v2-0292 | OLZBPMMLOHCMBEHKGCROLKHIMGBNFBADRYUNORDCKZAHLVUNKTSLEMUNHTVAQTZBUNSERY | OLZBPMMLOHCMBEHKGCROLKHIMGBNFBADRYUNORDCKZAHLVUNKTSLEMUNHTVAQTZBUNSERY | NEVER IN THE FIELD OF HUMAN CONFLICT WAS SO MUCH OWED BY SO MANY TO SO FEW BRAVE SOULS | playfair | playfair | polygraphic | {
"type": "keyword",
"value": "BATTLE"
} | intermediate | en | 70 | 70 | cipher_museum | 2.0 | public | null | null |
typex-v2-0070 | WBISGWEHHJGGYWQQVSNNJLJNFFLKMIOGWLCRQKNJUGTZVGUVZEDYEIHSXGDHWORUKMVTQND | WBISGWEHHJGGYWQQVSNNJLJNFFLKMIOGWLCRQKNJUGTZVGUVZEDYEIHSXGDHWORUKMVTQND | QUOTH THE RAVEN NEVERMORE THE BIRD SAT ON THE BUST OF PALLAS JUST ABOVE MY CHAMBER DOOR | typex | typex | machine | {
"type": "keyword",
"value": "LONDON"
} | expert | en | 71 | 71 | cipher_museum | 2.0 | public | null | null |
wheatstone-v3-0247 | SDAAXMAPEJAKSILKNEPJQ | SDAAXMAPEJAKSILKNEPJQ | THE EXPERIMENT CONFIRMS | wheatstone | wheatstone | polygraphic | {
"type": "keyword",
"value": "BRITAIN"
} | advanced | en | 21 | 21 | cipher_museum | 2.0 | public | null | null |
cda-0018564 | 802 999 837 844 810 813 834 999 808 802 839 999 806 833 802 854 855 826 816 874 999 846 802 857 859 812 851 840 854 999 803 862 858 999 824 859 999 806 801 839 999 802 834 854 844 999 804 813 999 866 852 842 841 819 999 823 826 855 857 842 852 826 806 800 833 999 807 825 846 823 814 851 855 999 802 851 814 999 859 813 ... | 802 999 837 844 810 813 834 999 808 802 839 999 806 833 802 854 855 826 816 874 999 846 802 857 859 812 851 840 854 999 803 862 858 999 824 859 999 806 801 839 999 802 834 854 844 999 804 813 999 866 852 842 841 819 999 823 826 855 857 842 852 826 806 800 833 999 807 825 846 823 814 851 855 999 802 851 814 999 859 813 ... | A MODEL CAN CLASSIFY PATTERNS BUT IT CAN ALSO BE WRONG HISTORICAL CIPHERS ARE TEACHERS NOT PROTECTION | culper_ring | culper_ring | null | {} | hard | en | 85 | 85 | synthetic_educational | null | null | [
"codebook_frequency",
"number_range_analysis"
] | Culper Ring code: Washington's three-digit codebook numbers (800–999 range). |
cda-0011078 | ZYWNVWZRVMIHSF FSZRITK CKI DCWHSZWI VWZRVMIH KRSBHK VQ VBBSQI FSZRIT VZZWSIK V WSQIVT BCQFHSYQ HY IVFR WIHHIT HRI VTFRSHIFHCTI KRYCWG DVXI DSKCKI RVTGIT HRI WSMTVTN ZTIKITJIK XQYPWIGAI BYT HRI FYDDCQSHN | ZYWNVWZRVMIHSF FSZRITK CKI DCWHSZWI VWZRVMIH KRSBHK VQ VBBSQI FSZRIT VZZWSIK V WSQIVT BCQFHSYQ HY IVFR WIHHIT HRI VTFRSHIFHCTI KRYCWG DVXI DSKCKI RVTGIT HRI WSMTVTN ZTIKITJIK XQYPWIGAI BYT HRI FYDDCQSHN | POLYALPHABETIC CIPHERS USE MULTIPLE ALPHABET SHIFTS AN AFFINE CIPHER APPLIES A LINEAR FUNCTION TO EACH LETTER THE ARCHITECTURE SHOULD MAKE MISUSE HARDER THE LIBRARY PRESERVES KNOWLEDGE FOR THE COMMUNITY | monoalphabetic | monoalphabetic | null | {
"alphabet": "VMFGIBARSLXWDQYZUTKHCJPONE"
} | hard | en | 174 | 174 | synthetic_educational | null | null | [] | |
lorenz-v3-0389 | TREATUREBURIEDHERE | TREATUREBURIEDHERE | TREASURE BURIED HERE | lorenz | lorenz | machine | {
"type": "seed",
"value": "STURGEON"
} | expert | en | 18 | 18 | cipher_museum | 2.0 | public | null | null |
monoalphabetic-v2-0014 | ORESS TFE PTTPLI | ORESS TFE PTTPLI | PRESS THE ATTACK | monoalphabetic | monoalphabetic | substitution | {
"type": "keyword",
"value": "PALACE"
} | beginner | en | 14 | 16 | cipher_museum | 2.0 | public | null | null |
rail-fence-la-050 | SSERLIIPCMAAELMVAPBU | SSERLIIPCMAAELMVAPBU | SI VIS PACEM PARA BELLUM | rail_fence | rail_fence | transposition | {
"type": "shift",
"value": 3
} | intermediate | la | 20 | 20 | cipher_museum | 0.2 | public | null | null |
cda-0011749 | URIJG CTSMO KDOHS VBMRT BGMUJ PBUTN | URIJG CTSMO KDOHS VBMRT BGMUJ PBUTN | FAIL CLOSED IS A POSTURE NOT A SLOGAN | autokey | autokey | null | {
"primer": "PRAYER"
} | medium | en | 30 | 30 | synthetic_educational | null | null | [] | |
columnar-transposition-la-058 | OURITATIRINHEMTNNNAITMULI | OURITATIRINHEMTNNNAITMULI | OMNIA MUTANTUR NIHIL INTERIT | columnar_transposition | columnar_transposition | transposition | {
"type": "keyword",
"value": "CIPHER"
} | intermediate | la | 25 | 25 | cipher_museum | 0.2 | public | null | null |
venona-pad-reuse-v2-0219 | YPFLRRSLOFG76LLAMWQYMPHQM4AKOGQXWXVP6SKA44IGHQZQYGKFWJBLPECA23NPZSKRQUDZBPD7QYPMKH | YPFLRRSLOFG76LLAMWQYMPHQM4AKOGQXWXVP6SKA44IGHQZQYGKFWJBLPECA23NPZSKRQUDZBPD7QYPMKH | THE PACKAGE CONTAINS BLUEPRINTS FOR THE NEW TORPEDO GUIDANCE SYSTEM DELIVER TO ADMIRAL SMITH NOW | venona_pad_reuse | venona_pad_reuse | stream | {
"type": "keyword",
"value": "LIBERTY"
} | expert | en | 82 | 82 | cipher_museum | 2.0 | public | null | null |
affine-v3-0764 | EZCJWRK MBHXCWPI CXX | EZCJWRK MBHXCWPI CXX | GRAVITY EXPLAINS ALL | affine | affine | substitution | {
"a": 9,
"b": 2
} | beginner | en | 18 | 20 | cipher_museum | 2.0 | public | null | null |
copiale-v2-0139 | I7 U2 B6 X3 Y6 G7 K2 V8 O1 V2 E4 X1 J0 | I7 U2 B6 X3 Y6 G7 K2 V8 O1 V2 E4 X1 J0 | STAY THE COURSE | copiale | copiale | substitution | {
"type": "keyword",
"value": "TEMPLE"
} | advanced | en | 26 | 38 | cipher_museum | 2.0 | public | null | null |
cda-0018785 | FREQX ENCYZ NALYS ISCAN REVEX LWEAK CIPHE RSKEZ CKHOF FSPRI NCIPL ESAYX THESY STEMM USTBE SECUR EEVEN IFENE MYKNO WSALZ ORITX MSUBS TITUT IONCI PHERX MAPEA CHLET TERTO ADIFX ERENT LETTE RENTZ OPYME ASURX SUNCX RTAIX TYINA DISTR IBUTI ONBEB | FREQX ENCYZ NALYS ISCAN REVEX LWEAK CIPHE RSKEZ CKHOF FSPRI NCIPL ESAYX THESY STEMM USTBE SECUR EEVEN IFENE MYKNO WSALZ ORITX MSUBS TITUT IONCI PHERX MAPEA CHLET TERTO ADIFX ERENT LETTE RENTZ OPYME ASURX SUNCX RTAIX TYINA DISTR IBUTI ONBEB | FREQUENCY ANALYSIS CAN REVEAL WEAK CIPHERS KERCKHOFFS PRINCIPLE SAYS THE SYSTEM MUST BE SECURE EVEN IF ENEMY KNOWS ALGORITHM SUBSTITUTION CIPHERS MAP EACH LETTER TO A DIFFERENT LETTER ENTROPY MEASURES UNCERTAINTY IN A DISTRIBUTION | commercial_code | commercial_code | null | {} | hard | en | 200 | 200 | synthetic_educational | null | null | [
"codebook_frequency",
"five_letter_group_analysis"
] | Commercial code: five-letter groups from a codebook, often ending in X or Z. |
chaocipher-v2-0523 | WMIDPOBJJXGGFGFVEH | WMIDPOBJJXGGFGFVEH | CONTACT HAS BEEN MADE | chaocipher | chaocipher | machine | {
"type": "keyword",
"value": "TRIUMPH"
} | advanced | en | 18 | 18 | cipher_museum | 2.0 | public | null | null |
caesar-v3-0377 | ZNK HGZZRK UL MKZZEYHAXM RGYZKJ ZNXKK JGEY GTJ IUYZ UBKX LOLZE ZNUAYGTJ IGYAGRZOKY ZUZGR | ZNK HGZZRK UL MKZZEYHAXM RGYZKJ ZNXKK JGEY GTJ IUYZ UBKX LOLZE ZNUAYGTJ IGYAGRZOKY ZUZGR | THE BATTLE OF GETTYSBURG LASTED THREE DAYS AND COST OVER FIFTY THOUSAND CASUALTIES TOTAL | caesar | caesar | substitution | {
"type": "shift",
"value": 6
} | beginner | en | 75 | 88 | cipher_museum | 2.0 | public | null | null |
adfgvx-175 | AAAAAFGAAAFDAAADAAAGGVAAAAAFGVDADAAFAAAADGDDXDAXDGXVXDDVDADFGAFVADDVGADXAXGXDVVVDAGVXDGDDFDAGDVADVGVAAADAAADAAAAAFGAFDAD | AAAAAFGAAAFDAAADAAAGGVAAAAAFGVDADAAFAAAADGDDXDAXDGXVXDDVDADFGAFVADDVGADXAXGXDVVVDAGVXDGDDFDAGDVADVGVAAADAAADAAAAAFGAFDAD | EVERY SECRET HAS A KEEPER AND EVERY CODE HAS A BREAKER WHO SEEKS THE TRUTH | adfgvx | adfgvx | fractionation | {
"polybius": "SECRET",
"columnar": "AGENTS"
} | advanced | en | 120 | 120 | cipher_museum | 0.2 | public | null | null |
cda-0003864 | GVSWA QRKBT QBVAQ WRSAP RVFOH FRSHN QYHRZ BRSEA RAQEL CGVBA WFABG PEBNS ANLYS GGNES ESDHN ANLGV SEOVY TSAQR NVCVS EJEVG SFGRK GWAOM VTMOU COGGN EA | GVSWA QRKBT QBVAQ WRSAP RVFOH FRSHN QYHRZ BRSEA RAQEL CGVBA WFABG PEBNS ANLYS GGNES ESDHN ANLGV SEOVY TSAQR NVCVS EJEVG SFGRK GWAOM VTMOU COGGN EA | THE INDEX OF COINCIDENCE IS A USEFUL CLUE MODERN ENCRYPTION IS NOT BROKEN BY LETTER FREQUENCY THE RAIL FENCE CIPHER WRITES TEXT IN A ZIGZAG PATTERN | porta | porta | null | {
"key": "JUSTICE"
} | hard | en | 122 | 122 | synthetic_educational | null | null | [
"kasiski_examination",
"index_of_coincidence"
] | Porta: 13-row table polyalphabetic cipher; reciprocal (encrypt = decrypt). |
cda-0016439 | TZGN EAJJ IART WSBW VHOA JNPK LPNA KGSS NVRI XDWK AMAP LTUI SHAR KTTE RSIL JUAV FZDA SIWG QTPT TLTA XFDM FWTA TFVL AKOC AAEE XKIK BSTY IRTP FJRM EEZN WXJH VIIY EAKL IBYL KTAS ERFZ MKIX JSTB RXG | TZGN EAJJ IART WSBW VHOA JNPK LPNA KGSS NVRI XDWK AMAP LTUI SHAR KTTE RSIL JUAV FZDA SIWG QTPT TLTA XFDM FWTA TFVL AKOC AAEE XKIK BSTY IRTP FJRM EEZN WXJH VIIY EAKL IBYL KTAS ERFZ MKIX JSTB RXG | A SCYTALE IS A ROD USED BY SPARTANS TO ENCRYPT MESSAGES THE ENIGMA MACHINE USED ROTORS TO CREATE A POLYALPHABETIC CIPHER TWO SQUARE CIPHER ENCRYPTS DIGRAPHS WITH TWO POLYBIUS ALPHABETS | running_key | running_key | null | {} | hard | en | 155 | 155 | synthetic_educational | null | null | [
"index_of_coincidence",
"probable_plaintext"
] | Running-key cipher: Vigenère with a very long key (e.g. a book passage). |
cda-0005539 | CNGGREA JBEQF URYC OERNX ZBABNYCUNORGVP FHOFGVGHGVBA GUR XNFVFXV RKNZVANGVBA SVAQF ERCRNGRQ GEVTENZF VA PVCUREGRKG GUR RAVTZN ZNPUVAR HFRQ EBGBEF GB PERNGR N CBYLNYCUNORGVP PVCURE SERDHRAPL NANYLFVF PNA ERIRNY JRNX PVCUREF | CNGGREA JBEQF URYC OERNX ZBABNYCUNORGVP FHOFGVGHGVBA GUR XNFVFXV RKNZVANGVBA SVAQF ERCRNGRQ GEVTENZF VA PVCUREGRKG GUR RAVTZN ZNPUVAR HFRQ EBGBEF GB PERNGR N CBYLNYCUNORGVP PVCURE SERDHRAPL NANYLFVF PNA ERIRNY JRNX PVCUREF | PATTERN WORDS HELP BREAK MONOALPHABETIC SUBSTITUTION THE KASISKI EXAMINATION FINDS REPEATED TRIGRAMS IN CIPHERTEXT THE ENIGMA MACHINE USED ROTORS TO CREATE A POLYALPHABETIC CIPHER FREQUENCY ANALYSIS CAN REVEAL WEAK CIPHERS | rot13 | rot13 | null | {
"shift": 13
} | hard | en | 193 | 193 | synthetic_educational | null | null | [
"brute_force_26",
"self_inverse_check"
] | ROT-13 is Caesar with shift 13 — it is its own inverse. |
porta-v2-0412 | DMCDEMHSIBSRVMLDN | DMCDEMHSIBSRVMLDN | NOVUS ORDO SECLORUM | porta | porta | polyalphabetic | {
"type": "keyword",
"value": "VENICE"
} | intermediate | en | 17 | 17 | cipher_museum | 2.0 | public | null | null |
chinese-telegraph-v2-0022 | 0219 0538 1599 0538 0219 0285 0012 0856 0219 0156 0918 0856 1187 1503 0285 1255 | 0219 0538 1599 0538 0219 0285 0012 0856 0219 0156 0918 0856 1187 1503 0285 1255 | DIVIDE AND CONQUER | chinese_telegraph | chinese_telegraph | codebook | {
"type": "none",
"value": null
} | expert | en | 64 | 79 | cipher_museum | 2.0 | public | null | null |
voynich-render-v3-0010 | ndq oxndqo oe oxgqo | ndq oxndqo oe oxgqo | PER ASPERA AD ASTRA | voynich_render | voynich_render | substitution | {
"type": "none",
"value": null
} | expert | en | 16 | 19 | cipher_museum | 2.0 | public | null | null |
jefferson-disk-147 | NJQZXYJJGZVZLMCRWCQHIMIKGKAHWMFZHOWBHKIXVW | NJQZXYJJGZVZLMCRWCQHIMIKGKAHWMFZHOWBHKIXVW | GIVE ME LIBERTY OR GIVE ME DEATH SAID PATRICK HENRY | jefferson_disk | jefferson_disk | disk | {
"type": "disk_order",
"value": "5,3,6,1,4,2"
} | expert | en | 42 | 42 | cipher_museum | 0.2 | public | null | null |
cda-0013630 | 15.36.1 6.12.8 15.25.5 18.30.12 15.7.3 7.11.1 20.1.7 18.17.9 20.7.13 20.26.4 11.34.10 19.1.9 18.47.2 12.34.8 19.41.14 10.9.12 12.31.3 9.11.12 8.13.14 2.28.10 9.25.8 16.30.1 18.50.14 2.10.14 20.24.9 20.41.13 3.1.3 13.35.10 3.16.8 13.19.5 18.24.8 8.31.13 10.17.14 4.17.9 9.18.10 13.30.15 16.29.2 9.13.3 19.10.13 9.42.11 16... | 15.36.1 6.12.8 15.25.5 18.30.12 15.7.3 7.11.1 20.1.7 18.17.9 20.7.13 20.26.4 11.34.10 19.1.9 18.47.2 12.34.8 19.41.14 10.9.12 12.31.3 9.11.12 8.13.14 2.28.10 9.25.8 16.30.1 18.50.14 2.10.14 20.24.9 20.41.13 3.1.3 13.35.10 3.16.8 13.19.5 18.24.8 8.31.13 10.17.14 4.17.9 9.18.10 13.30.15 16.29.2 9.13.3 19.10.13 9.42.11 16... | EVERY SYSTEM NEEDS AN HONEST THREAT MODEL THE RAIL FENCE CIPHER WRITES TEXT IN A ZIGZAG PATTERN PATTERN WORDS HELP BREAK MONOALPHABETIC SUBSTITUTION ERROR CORRECTION AND DETECTION ARE FUNDAMENTAL TO SECURE SYSTEMS HONESTLY | book_cipher | book_cipher | null | {} | hard | en | 190 | 190 | synthetic_educational | null | null | [
"book_cipher_attack",
"triple_index_search"
] | Book cipher: coordinates (page.line.word) referencing a shared document. |
playfair-de-058 | GYVUDGDEZMALHCUGSKDFDUBGYOOGUZ | GYVUDGDEZMALHCUGSKDFDUBGYOOGUZ | HEUTE DEUTSCHLAND MORGEN DIE WELT | playfair | playfair | substitution | {
"type": "keyword",
"value": "KEYWORD"
} | intermediate | de | 30 | 30 | cipher_museum | 0.2 | public | null | null |
columnar-transposition-v3-0729 | ASCPRSTLOEHEOANHEK | ASCPRSTLOEHEOANHEK | THE ORACLE HAS SPOKEN | columnar_transposition | columnar_transposition | transposition | {
"type": "keyword",
"value": "JUSTICE"
} | intermediate | en | 18 | 18 | cipher_museum | 2.0 | public | null | null |
kama-sutra-v3-0232 | EQT AZYX ZF AZEQ CF | EQT AZYX ZF AZEQ CF | THE WIND IS WITH US | kama_sutra | kama_sutra | substitution | {
"type": "keyword",
"value": "INDIA"
} | intermediate | en | 15 | 19 | cipher_museum | 2.0 | public | null | null |
lorenz-v2-0565 | FORIBMPERSUADEDTHATNEITHERDEATHNORLIFENORANGEKSNORPRINCIPALITIESNORPOWERSNORTHINGSPRESFNTNORTHINGSTOCOMENORHEIGHTNORDEPTHNORANYPTHERCREATURESHALLBEABLETOSEPARATEUSFROMTGELOVEOFGOD | FORIBMPERSUADEDTHATNEITHERDEATHNORLIFENORANGEKSNORPRINCIPALITIESNORPOWERSNORTHINGSPRESFNTNORTHINGSTOCOMENORHEIGHTNORDEPTHNORANYPTHERCREATURESHALLBEABLETOSEPARATEUSFROMTGELOVEOFGOD | FOR I AM PERSUADED THAT NEITHER DEATH NOR LIFE NOR ANGELS NOR PRINCIPALITIES NOR POWERS NOR THINGS PRESENT NOR THINGS TO COME NOR HEIGHT NOR DEPTH NOR ANY OTHER CREATURE SHALL BE ABLE TO SEPARATE US FROM THE LOVE OF GOD | lorenz | lorenz | machine | {
"type": "seed",
"value": "STURGEON"
} | expert | en | 179 | 179 | cipher_museum | 2.0 | public | null | null |
solitaire-v2-0206 | XMNHGGDREHDRDIMBXRPXXAKQCDAYBLJDMCAXRKHDKJQKFFOQPEEOXESACARUTKXBJCSHZZESKJUPNF | XMNHGGDREHDRDIMBXRPXXAKQCDAYBLJDMCAXRKHDKJQKFFOQPEEOXESACARUTKXBJCSHZZESKJUPNF | THE HEAVENS DECLARE THE GLORY OF GOD AND THE FIRMAMENT SHOWETH FORTH HIS HANDIWORK EACH NIGHT | solitaire | solitaire | stream | {
"type": "passphrase",
"value": "SCHNEIER"
} | expert | en | 78 | 78 | cipher_museum | 2.0 | public | null | null |
copiale-v3-0106 | E0 E4 O1 K7 F6 G4 L1 P0 Z4 V2 I1 N2 E0 U4 C0 F7 O1 E9 | E0 E4 O1 K7 F6 G4 L1 P0 Z4 V2 I1 N2 E0 U4 C0 F7 O1 E9 | CROSS THE RUBICON NOW | copiale | copiale | substitution | {
"type": "keyword",
"value": "TEMPLE"
} | advanced | en | 36 | 53 | cipher_museum | 2.0 | public | null | null |
cda-0013524 | SSOVP QHSAZ EBFDO ZTDHN ZYRAX JGIFR JAFAF WOATU PFWNW QTLQT ARVBB GRXXB PGYKA PKGAR ZZJLH VMXGI BTYQJ XCHJK OGYEL RRXEB BFAHK AQLWA PAGLH XDEUG HEVMC YWHAC WHICG JHEQE WHGTS JIKB | SSOVP QHSAZ EBFDO ZTDHN ZYRAX JGIFR JAFAF WOATU PFWNW QTLQT ARVBB GRXXB PGYKA PKGAR ZZJLH VMXGI BTYQJ XCHJK OGYEL RRXEB BFAHK AQLWA PAGLH XDEUG HEVMC YWHAC WHICG JHEQE WHGTS JIKB | THE MESSAGE WAS HIDDEN BUT NOT SECURE THE AUTOKEY CIPHER EXTENDS THE KEY WITH THE PLAINTEXT ITSELF DIFFIE AND HELLMAN INTRODUCED PUBLIC KEY CRYPTOGRAPHY IN NINETEEN SEVENTY SIX | one_time_pad | one_time_pad | null | {} | hard | en | 149 | 149 | synthetic_educational | null | null | [
"information_theoretic_proof",
"key_reuse_attack"
] | One-time pad: theoretically unbreakable if key is truly random and never reused. |
cda-0013192 | 8 9 19 20 15 18 9 3 1 12 3 9 16 8 5 18 19 1 18 5 20 5 1 3 8 5 18 19 14 15 20 16 18 15 20 5 3 20 9 15 14 4 9 7 18 1 16 8 1 14 4 20 18 9 7 18 1 16 8 6 18 5 17 21 5 14 3 9 5 19 5 24 16 15 19 5 19 9 13 16 12 5 3 9 16 8 5 18 19 | 8 9 19 20 15 18 9 3 1 12 3 9 16 8 5 18 19 1 18 5 20 5 1 3 8 5 18 19 14 15 20 16 18 15 20 5 3 20 9 15 14 4 9 7 18 1 16 8 1 14 4 20 18 9 7 18 1 16 8 6 18 5 17 21 5 14 3 9 5 19 5 24 16 15 19 5 19 9 13 16 12 5 3 9 16 8 5 18 19 | HISTORICAL CIPHERS ARE TEACHERS NOT PROTECTION DIGRAPH AND TRIGRAPH FREQUENCIES EXPOSE SIMPLE CIPHERS | aeneas_tacticus | aeneas_tacticus | null | {} | hard | en | 89 | 89 | synthetic_educational | null | null | [
"sequential_number_decode",
"frequency_analysis"
] | Aeneas Tacticus: Greek sequential-number cipher; A=1…Z=26. |
adfgx-v2-0202 | AXAXGXDXXGGAAAAGFFAXGXFFFGAXAGGADGFGFADAFGAGDFGGGDAGDGDADXDGAADDADADDGGAFXGAAGGXAAADFDAADFAFDDADGDXAGDGGFDAGDGGFGGADDAAFGAADADFGGFXGAFFADXAAGFAGGXAXAGADFDAGAG | AXAXGXDXXGGAAAAGFFAXGXFFFGAXAGGADGFGFADAFGAGDFGGGDAGDGDADXDGAADDADADDGGAFXGAAGGXAAADFDAADFAFDDADGDXAGDGGFDAGDGGFGGADDAAFGAADADFGGFXGAFFADXAAGFAGGXAXAGADFDAGAG | THE KASISKI TEST FINDS REPEATED SEQUENCES TO DETERMINE THE KEY LENGTH OF A VIGENERE CIPHER KEY | adfgx | adfgx | fractionation | {
"polybius": "LIBERTY",
"columnar": "FREEDOM"
} | advanced | en | 158 | 158 | cipher_museum | 2.0 | public | null | null |
red-type-a-003 | FVYOEWNYVUVDOGJYB | FVYOEWNYVUVDOGJYB | THE EAGLE HAS LANDED | red_type_a | red_type_a | machine | {
"type": "keyword",
"value": "TOKYORED"
} | advanced | en | 17 | 17 | cipher_museum | 0.2 | public | null | null |
chaocipher-187 | PPUARFOFDQTBQQH | PPUARFOFDQTBQQH | ABORT MISSION NOW | chaocipher | chaocipher | machine | {
"type": "keyword",
"value": "MUSEUM"
} | advanced | en | 15 | 15 | cipher_museum | 0.2 | public | null | null |
nihilist-122 | 36 56 24 84 36 24 54 46 37 53 47 22 44 37 46 73 66 23 35 37 35 | 36 56 24 84 36 24 54 46 37 53 47 22 44 37 46 73 66 23 35 37 35 | THE PACKAGE IS DELIVERED | nihilist | nihilist | fractionation | {
"polybius": "SECRET",
"keyword": "AGENTS"
} | advanced | en | 42 | 62 | cipher_museum | 0.2 | public | null | null |
venona-pad-reuse-v3-0304 | R2XVDGBWVPPLIIITABSAAE2AXBJHBJLESEKFEAXEKMO2MAROBB4KVPAYXRHRDD7FXAMOYCU2HSD77T7F4SKZBRPMOIKBAIEOGBWVJXLABXQABN7IL6AVD5EL4WFHIMIQQXQJIX7QVBKLFSXKCKDU7XAB5IGRXEIFOLDXW | R2XVDGBWVPPLIIITABSAAE2AXBJHBJLESEKFEAXEKMO2MAROBB4KVPAYXRHRDD7FXAMOYCU2HSD77T7F4SKZBRPMOIKBAIEOGBWVJXLABXQABN7IL6AVD5EL4WFHIMIQQXQJIX7QVBKLFSXKCKDU7XAB5IGRXEIFOLDXW | 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 | venona_pad_reuse | venona_pad_reuse | stream | {
"type": "keyword",
"value": "FREEDOM"
} | expert | en | 165 | 165 | cipher_museum | 2.0 | public | null | null |
cardano-autokey-v3-0177 | GMPWKWHDRVXALQQIOPTFKALCQZHLWTVULVZBMALIERKAHNQWALTTECGQMKOVJKZHLWMFGCLWPHVGBF | GMPWKWHDRVXALQQIOPTFKALCQZHLWTVULVZBMALIERKAHNQWALTTECGQMKOVJKZHLWMFGCLWPHVGBF | BLESSED ARE THE MEEK FOR THEY SHALL INHERIT THE EARTH AND THE PEACEMAKERS SHALL BE CALLED SONS | cardano_autokey | cardano_autokey | polyalphabetic | {
"type": "keyword",
"value": "FLORENCE"
} | advanced | en | 78 | 78 | cipher_museum | 2.0 | public | null | null |
cda-0008045 | ILNEQ AXFYN YUAGE AGGUS JJXNC EBOSN YWEXJ RSPRP GDJHA RVWCI IJYAA EUSCK EXZFW RAROE QWGNP VNFIV JPHDC HZXHW YOHXY AAEUA ANDUG LC | ILNEQ AXFYN YUAGE AGGUS JJXNC EBOSN YWEXJ RSPRP GDJHA RVWCI IJYAA EUSCK EXZFW RAROE QWGNP VNFIV JPHDC HZXHW YOHXY AAEUA ANDUG LC | OPEN SOURCE TOOLS ALLOW INDEPENDENT VERIFICATION TRANSPOSITION CIPHERS REARRANGE LETTERS WITHOUT SUBSTITUTION CAREFULLY | beaufort | beaufort | null | {
"key": "WARRIOR"
} | hard | en | 107 | 107 | synthetic_educational | null | null | [] | |
cda-0013089 | POAGQ MIGLR AMNQQ BSXJG KINBN HRWBJ DBRYC JYPGM EMLB | POAGQ MIGLR AMNQQ BSXJG KINBN HRWBJ DBRYC JYPGM EMLB | MODERN ENCRYPTION IS NOT BROKEN BY LETTER FREQUENCY | one_time_pad | one_time_pad | null | {} | medium | en | 44 | 44 | synthetic_educational | null | null | [
"information_theoretic_proof",
"key_reuse_attack"
] | One-time pad: theoretically unbreakable if key is truly random and never reused. |
sigaba-v3-0064 | JSJTTEUYDPWDHQMDAXPLVETOFUWDDNRUIASNNVEUPVPDBTKSXUHQFTFJHKADFYVVERJSOPNRIL | JSJTTEUYDPWDHQMDAXPLVETOFUWDDNRUIASNNVEUPVPDBTKSXUHQFTFJHKADFYVVERJSOPNRIL | GENERAL PATTON LED THE THIRD ARMY IN A DARING SWEEP ACROSS FRANCE FOLLOWING THE BREAKOUT | sigaba | sigaba | machine | {
"type": "seed",
"value": "ECMMARK"
} | expert | en | 74 | 74 | cipher_museum | 2.0 | public | null | null |
alberti-disk-v3-0667 | BKEEROPELKLAHOLPXMKUDQ | BKEEROPELKLAHOLPXMKUDQ | MESSAGE RECEIVED CLEARLY | alberti_disk | alberti_disk | disk | {
"type": "integer",
"value": 16
} | expert | en | 22 | 22 | cipher_museum | 2.0 | public | null | null |
geez-monastic-089 | SKWNQKECPSSAPXOT | SKWNQKECPSSAPXOT | LOCK DOWN ALL GATES | geez_monastic | geez_monastic | substitution | {
"type": "keyword",
"value": "CIPHER"
} | advanced | en | 16 | 16 | cipher_museum | 0.2 | public | null | null |
cda-0017582 | THRE EHOU SEEN EMYM ARCH ENTE RSWI FTSE EKSA LONG GOIN GEXA CTWI NGSA GAIN SWIF THOU RSIN NERD RIVE DEPT HENT ERNA VALB ELOW UNTI LTRA CKNO TESO FTEN TROO P | THRE EHOU SEEN EMYM ARCH ENTE RSWI FTSE EKSA LONG GOIN GEXA CTWI NGSA GAIN SWIF THOU RSIN NERD RIVE DEPT HENT ERNA VALB ELOW UNTI LTRA CKNO TESO FTEN TROO P | THE MESSAGE WAS HIDDEN BUT NOT SECURE CAREFULLY | null_cipher | null_cipher | null | {} | hard | en | 125 | 125 | synthetic_educational | null | null | [
"acrostic_detection",
"first_letter_extraction"
] | Null/steganographic cipher: hidden message formed by first letters of words. |
straddling-checkerboard-v2-0038 | 23281142000129212810204252062156 | 23281142000129212810204252062156 | FLEET ASSEMBLES AT HARBOR | straddling_checkerboard | straddling_checkerboard | substitution | {
"type": "top_row",
"value": "SENTORISCA"
} | advanced | en | 32 | 32 | cipher_museum | 2.0 | public | null | null |
porta-183 | MOZNNWNYOVJYQLXYY | MOZNNWNYOVJYQLXYY | THE EAGLE HAS LANDED | porta | porta | polyalphabetic | {
"type": "keyword",
"value": "PORTAGE"
} | intermediate | en | 17 | 17 | cipher_museum | 0.2 | public | null | null |
monoalphabetic-598 | VETQETM QETMTOIMT XT TCQ IM PMAHD IM VECQNITUTM XT PI PI CFF QI QET KFIMX IO KIP OIM QET TCMQE AN QET FIMPN CHP QET OSFFHTNN QETMTIO QET VIMFP CHP QETX QECQ PVTFF QETMTAH | VETQETM QETMTOIMT XT TCQ IM PMAHD IM VECQNITUTM XT PI PI CFF QI QET KFIMX IO KIP OIM QET TCMQE AN QET FIMPN CHP QET OSFFHTNN QETMTIO QET VIMFP CHP QETX QECQ PVTFF QETMTAH | WHETHER THEREFORE YE EAT OR DRINK OR WHATSOEVER YE DO DO ALL TO THE GLORY OF GOD FOR THE EARTH IS THE LORDS AND THE FULLNESS THEREOF THE WORLD AND THEY THAT DWELL THEREIN | monoalphabetic | monoalphabetic | substitution | {
"type": "keyword",
"value": "CRYPTOKEY"
} | beginner | en | 137 | 170 | cipher_museum | 0.2 | public | null | null |
cda-0017308 | 3483 01629 05699 01021 3461 2560 4783 01913 1892 5993 05041 5691 02850 04483 1015 2871 5025 3813 1627 6050 00406 07870 05970 6362 2568 1657 6021 7915 06044 6346 01604 04170 04160 06652 06029 06352 00678 1595 06051 1663 1014 06651 05738 1669 1570 06973 1612 04484 2895 1980 01622 4437 01585 4117 07879 3466 4480 04779 723... | 3483 01629 05699 01021 3461 2560 4783 01913 1892 5993 05041 5691 02850 04483 1015 2871 5025 3813 1627 6050 00406 07870 05970 6362 2568 1657 6021 7915 06044 6346 01604 04170 04160 06652 06029 06352 00678 1595 06051 1663 1014 06651 05738 1669 1570 06973 1612 04484 2895 1980 01622 4437 01585 4117 07879 3466 4480 04779 723... | KERCKHOFFS PRINCIPLE SAYS THE SYSTEM MUST BE SECURE EVEN IF ENEMY KNOWS ALGORITHM CRYPTOGRAPHY REWARDS PATIENCE AND CAREFUL THINKING | zimmermann | zimmermann | null | {} | hard | en | 114 | 114 | synthetic_educational | null | null | [
"codebook_frequency",
"number_group_analysis"
] | Zimmermann Telegram code: WWI German diplomatic numeric codebook cipher. |
four-square-v2-0042 | SGLEOSSQCOGPUQPOIYLOPZAUCGASSORMNNSGSGTKRHBTHASX | SGLEOSSQCOGPUQPOIYLOPZAUCGASSORMNNSGSGTKRHBTHASX | THE COURSE OF TRUE LOVE NEVER DID RUN SMOOTH THROUGH AGES | four_square | four_square | polygraphic | {
"key1": "PALACE",
"key2": "BATTLE"
} | advanced | en | 48 | 48 | cipher_museum | 2.0 | public | null | null |
kl7-v2-0245 | CNRJHJPYWHFLAXALDGTUPZOEYSTMEMLGIYCYPRAMUBSKDXHQTBGXWKNWPPOKPVRSMDRBUPQVXFWDQRRPUUKXWYDZARLFXYESBETQAOWNZLKMGPTVTLRHDFZKKJQIHBPJGKUPRDVPORWLPOUFUSLLSCWRVEGGYFXYNLPDJCWQOXFBHVO | CNRJHJPYWHFLAXALDGTUPZOEYSTMEMLGIYCYPRAMUBSKDXHQTBGXWKNWPPOKPVRSMDRBUPQVXFWDQRRPUUKXWYDZARLFXYESBETQAOWNZLKMGPTVTLRHDFZKKJQIHBPJGKUPRDVPORWLPOUFUSLLSCWRVEGGYFXYNLPDJCWQOXFBHVO | 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 | kl7 | kl7 | machine | {
"type": "seed",
"value": "LIBERTY"
} | expert | en | 175 | 175 | cipher_museum | 2.0 | public | null | null |
porta-v2-0514 | QMPYVXZTAMJMFNSSMYPDE | QMPYVXZTAMJMFNSSMYPDE | BRIDGE DESTROYED AT DAWN | porta | porta | polyalphabetic | {
"type": "keyword",
"value": "FLORENT"
} | intermediate | en | 21 | 21 | cipher_museum | 2.0 | public | null | null |
venona-pad-reuse-v2-0174 | LDKXWXOFZKHDTKYIHAR63PIDD5TVDFGMDAQHMOPRLKHIM46TJY2PJ235P2HVVTLZ3BCV | LDKXWXOFZKHDTKYIHAR63PIDD5TVDFGMDAQHMOPRLKHIM46TJY2PJ235P2HVVTLZ3BCV | ALL THE WORLDS A STAGE AND EACH MAN IN HIS TIME PLAYS MANY PARTS ON LIFES GREAT STAGE | venona_pad_reuse | venona_pad_reuse | stream | {
"type": "keyword",
"value": "LIBERTY"
} | expert | en | 68 | 68 | cipher_museum | 2.0 | public | null | null |
adfgvx-v2-0067 | VGVFFGXDDGGDDVDFDFAAGGDGVDDAFFFFGGDGAGAGFAFGGFDAFADXVVFGDAVDFAVXDAAADADDVAAGADDDAADAAFDAFADFGAAGDADAFADFDDAADAAFDADDFAGGFAADAFVFFFAVVGVVFGDGAXVVFFVGDV | VGVFFGXDDGGDDVDFDFAAGGDGVDDAFFFFGGDGAGAGFAFGGFDAFADXVVFGDAVDFAVXDAAADADDVAAGADDDAADAAFDAFADFGAAGDADAFADFDDAADAAFDADDFAGGFAADAFVFFFAVVGVVFGDGAXVVFFVGDV | IN THE BEGINNING GOD CREATED THE HEAVEN AND THE EARTH AND DARKNESS WAS UPON THE FACE OF DEEP | adfgvx | adfgvx | fractionation | {
"polybius": "PALACE",
"columnar": "BATTLE"
} | advanced | en | 150 | 150 | cipher_museum | 2.0 | public | null | null |
cda-0015810 | THANZ IELIN DZEHK LIZZI EWOLL ACHEE DIBEH TKIND IBEHK LIZZI ETKIN DZEHA LANAS DZOHW OLLAC HEENA ASTSO SITKI NTSAH WOLLA CHEET HANZI ETKIN AKHAT SAHMA ETKIN TSAHB EDIBE HGAHD ZEHCL AGIAI HDZEH WOLLA CHEET HANZI EDZEH BETHA NZIEG AHTKI NAHJA HGAHW OLLAC HEE | THANZ IELIN DZEHK LIZZI EWOLL ACHEE DIBEH TKIND IBEHK LIZZI ETKIN DZEHA LANAS DZOHW OLLAC HEENA ASTSO SITKI NTSAH WOLLA CHEET HANZI ETKIN AKHAT SAHMA ETKIN TSAHB EDIBE HGAHD ZEHCL AGIAI HDZEH WOLLA CHEET HANZI EDZEH BETHA NZIEG AHTKI NAHJA HGAHW OLLAC HEE | THE KASISKI EXAMINATION FINDS REPEATED TRIGRAMS IN CIPHERTEXT A TRANSPARENT TOOL SHOULD SHOW ITS REASONING THE BEST LESSONS SHOW WHERE THE METHOD FAILS | navajo_code | navajo_code | null | {} | hard | en | 213 | 213 | synthetic_educational | null | null | [
"codebook_frequency",
"word_list_attack"
] | Navajo Code Talker cipher: Navajo words represent English letters. |
hill-v3-0201 | OXTDHZJCLLYITAGGPKXSCJNNSVDKSUJOGLXSDAOXTDHZSVVWYINWRFJOCROXBDRTUIKXNNNWRFJOCROXMCCADWIBKMOXZVGLVWMSBXRMIBOXQOSYHZLMDDCINIEAOCNNSVLYXXNIHLMIJVZVKFYCQPNIPKLYPXWL | OXTDHZJCLLYITAGGPKXSCJNNSVDKSUJOGLXSDAOXTDHZSVVWYINWRFJOCROXBDRTUIKXNNNWRFJOCROXMCCADWIBKMOXZVGLVWMSBXRMIBOXQOSYHZLMDDCINIEAOCNNSVLYXXNIHLMIJVZVKFYCQPNIPKLYPXWL | THE LORD OUR GOD IS ONE LORD AND THOU SHALT LOVE THE LORD THY GOD WITH ALL THINE HEART AND WITH ALL THY SOUL AND WITH ALL THY MIGHT AND THESE WORDS WHICH I COMMAND THEE THIS DAY SHALL BE IN THINE HEART | hill | hill | polygraphic | {
"a": 5,
"b": 7,
"c": 2,
"d": 9
} | advanced | en | 160 | 160 | cipher_museum | 2.0 | public | null | null |
lorenz-057 | ITISRATHERFORUSTOBEHEREDEDICATEDTOTHEGREATTASKREMAININGBEFOREUSTHATFROMTHESEHONOREDDEADWETAKEINCREASEDDEVOTIONTOTHATCAUSEFORWHICHTHEYGAVETHELASTFULLMEASURE | ITISRATHERFORUSTOBEHEREDEDICATEDTOTHEGREATTASKREMAININGBEFOREUSTHATFROMTHESEHONOREDDEADWETAKEINCREASEDDEVOTIONTOTHATCAUSEFORWHICHTHEYGAVETHELASTFULLMEASURE | 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 | lorenz | lorenz | machine | {
"type": "seed",
"value": "LORENZ"
} | expert | en | 155 | 155 | cipher_museum | 0.2 | public | null | null |
enigma-v3-0717 | SLKCSNHIIJXSDKNWGOEWQTZQPILGKSXLYKIPTZVQRLMJGUZTMDPPZECNDFGBDSYWCDJJIGMZYHBUVKNTYMJAQCWGEPRPYECFNQCKNEYIOXMRPKPSBUMJBUWEYHLCZVNFSUICWXKLOLTHZUGEOMQWZCSNITOOZJHMJLBEPZVEY | SLKCSNHIIJXSDKNWGOEWQTZQPILGKSXLYKIPTZVQRLMJGUZTMDPPZECNDFGBDSYWCDJJIGMZYHBUVKNTYMJAQCWGEPRPYECFNQCKNEYIOXMRPKPSBUMJBUWEYHLCZVNFSUICWXKLOLTHZUGEOMQWZCSNITOOZJHMJLBEPZVEY | WE HOLD THESE TRUTHS TO BE SELF EVIDENT THAT ALL MEN ARE CREATED EQUAL THAT THEY ARE ENDOWED BY THEIR CREATOR WITH CERTAIN UNALIENABLE RIGHTS THAT AMONG THESE ARE LIFE LIBERTY AND THE PURSUIT OF HAPPINESS | enigma | enigma | machine | {
"type": "rotor_start",
"value": "STU"
} | expert | en | 169 | 169 | cipher_museum | 2.0 | public | null | null |
sigaba-v2-0049 | GXFZJEUABAMYUWZZVNMNDGZYEXCJEKDJDAVMOYUHRNFORCENOKXTXQVZUQQLYCGIHYJNFX | GXFZJEUABAMYUWZZVNMNDGZYEXCJEKDJDAVMOYUHRNFORCENOKXTXQVZUQQLYCGIHYJNFX | THE QUALITY OF MERCY IS NOT STRAINED IT DROPPETH AS THE GENTLE RAIN FROM HEAVEN ABOVE | sigaba | sigaba | machine | {
"type": "seed",
"value": "ECMMARK"
} | expert | en | 70 | 70 | cipher_museum | 2.0 | public | null | null |
caesar-v2-1668 | TFPALJ DRXOAP QEB DXQB | TFPALJ DRXOAP QEB DXQB | WISDOM GUARDS THE GATE | caesar | caesar | substitution | {
"type": "shift",
"value": 23
} | beginner | en | 19 | 22 | cipher_museum | 2.0 | public | null | null |
geez-monastic-004 | MTSATLREYKPOVHASHQCO | MTSATLREYKPOVHASHQCO | RENDEZVOUS AT MIDNIGHT | geez_monastic | geez_monastic | substitution | {
"type": "keyword",
"value": "GEEZ"
} | advanced | en | 20 | 20 | cipher_museum | 0.2 | public | null | null |
nomenclator-v3-0019 | 60 01 12 03 08 05 13 09 19 20 19 21 03 03 05 05 04 19 | 60 01 12 03 08 05 13 09 19 20 19 21 03 03 05 05 04 19 | THE ALCHEMIST SUCCEEDS | nomenclator | nomenclator | nomenclator | {
"type": "none",
"value": null
} | expert | en | 36 | 53 | cipher_museum | 2.0 | public | null | null |
affine-v3-0101 | PU AOL ZLCLUALLUAO JLUABYF PZHHJ ULDAVU ZFUAOLZPGLK AOL DVYR VM JVWLYUPJBZ NHSPSLV HUK RLWSLY PUAV H BUPMPLK AOLVYF VM NYHCPAHAPVU AOHA LEWSHPULK IVAO AOL MHSS VM HWWSLZ HUK AOL VYIPAZ VM WSHULAZ | PU AOL ZLCLUALLUAO JLUABYF PZHHJ ULDAVU ZFUAOLZPGLK AOL DVYR VM JVWLYUPJBZ NHSPSLV HUK RLWSLY PUAV H BUPMPLK AOLVYF VM NYHCPAHAPVU AOHA LEWSHPULK IVAO AOL MHSS VM HWWSLZ HUK AOL VYIPAZ VM WSHULAZ | IN THE SEVENTEENTH CENTURY ISAAC NEWTON SYNTHESIZED THE WORK OF COPERNICUS GALILEO AND KEPLER INTO A UNIFIED THEORY OF GRAVITATION THAT EXPLAINED BOTH THE FALL OF APPLES AND THE ORBITS OF PLANETS | affine | affine | substitution | {
"a": 1,
"b": 7
} | beginner | en | 164 | 195 | cipher_museum | 2.0 | public | null | null |
zimmermann-v2-0103 | 00000 99999 90000 90012 90001 90000 90018 90018 90000 90003 90014 90017 99998 99999 90007 90000 90018 99998 99999 90017 90004 90002 90004 90008 90021 90004 90003 99998 00083 00095 99999 90020 90017 90006 90004 90013 90019 99998 99999 90003 90008 90018 90015 90000 90019 90002 90007 90004 90018 99998 00002 99999 90000 90... | 00000 99999 90000 90012 90001 90000 90018 90018 90000 90003 90014 90017 99998 99999 90007 90000 90018 99998 99999 90017 90004 90002 90004 90008 90021 90004 90003 99998 00083 00095 99999 90020 90017 90006 90004 90013 90019 99998 99999 90003 90008 90018 90015 90000 90019 90002 90007 90004 90018 99998 00002 99999 90000 90... | THE AMBASSADOR HAS RECEIVED OUR MOST URGENT DISPATCHES AND AWAITS INSTRUCTIONS FROM LONDON HQ | zimmermann | zimmermann | codebook | {
"type": "none",
"value": null
} | expert | en | 430 | 515 | cipher_museum | 2.0 | public | null | null |
fialka-214 | YJNQDQNGHBAJUZXXXSUMEZBWZXKGTKLALYJGBKH | YJNQDQNGHBAJUZXXXSUMEZBWZXKGTKLALYJGBKH | IT WAS THE BEST OF TIMES IT WAS THE WORST OF TIMES | fialka | fialka | machine | {
"type": "seed",
"value": "MUSEUM"
} | expert | en | 39 | 39 | cipher_museum | 0.2 | public | null | null |
bifid-v2-0234 | RRFSBPFFGPDLKVMODCFKONSNVMMFOBKRNOCTTBSFFEFRVKNFCQSOFMOTRPDIAGDFACCPHCSTBMCNFGMFEOTTRONVLCPHXSWXRGHECZKANHWDHAECXXSRODVZASWUCBSSXREDDLWVLGLIVWPSTZBZOBVAWZVAXVBDZBHUSBNCWUIV | RRFSBPFFGPDLKVMODCFKONSNVMMFOBKRNOCTTBSFFEFRVKNFCQSOFMOTRPDIAGDFACCPHCSTBMCNFGMFEOTTRONVLCPHXSWXRGHECZKANHWDHAECXXSRODVZASWUCBSSXREDDLWVLGLIVWPSTZBZOBVAWZVAXVBDZBHUSBNCWUIV | 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 | bifid | bifid | fractionation | {
"type": "keyword",
"value": "FORTRESS"
} | advanced | en | 172 | 172 | cipher_museum | 2.0 | public | null | null |
nihilist-v2-0130 | 76 36 37 36 46 75 49 55 57 65 29 70 56 | 76 36 37 36 46 75 49 55 57 65 29 70 56 | STAY THE COURSE | nihilist | nihilist | fractionation | {
"polybius": "LIBERTY",
"keyword": "FREEDOM"
} | advanced | en | 26 | 38 | cipher_museum | 2.0 | public | null | null |
cda-0012068 | 13 31 11 43 43 24 13 11 31 13 24 35 23 15 42 43 44 15 11 13 23 52 23 54 32 34 14 15 42 33 43 15 13 45 42 24 44 54 32 11 44 44 15 42 43 | 13 31 11 43 43 24 13 11 31 13 24 35 23 15 42 43 44 15 11 13 23 52 23 54 32 34 14 15 42 33 43 15 13 45 42 24 44 54 32 11 44 44 15 42 43 | CLASSICAL CIPHERS TEACH WHY MODERN SECURITY MATTERS | polybius | polybius | null | {} | medium | en | 45 | 45 | synthetic_educational | null | null | [
"pair_decode",
"frequency_analysis"
] | Polybius square: 5×5 grid maps letters to two-digit row-column pairs. |
hill-142 | OKYGBNNKHVHUBESTKL | OKYGBNNKHVHUBESTKL | AWAIT FURTHER ORDERS | hill | hill | polygraphic | {
"a": 2,
"b": 3,
"c": 1,
"d": 4
} | advanced | en | 18 | 18 | cipher_museum | 0.2 | public | null | null |
cardano-autokey-v2-0357 | KALVVKOUQRGPETWSVZOLBLHDGABBWBHHGBTCVMVSTFTGQQRGLSRIZDZJWFAFALIESLXVEPQAYMNQSDGLALVV | KALVVKOUQRGPETWSVZOLBLHDGABBWBHHGBTCVMVSTFTGQQRGLSRIZDZJWFAFALIESLXVEPQAYMNQSDGLALVV | THE REGIMENT WILL HOLD ITS POSITION UNTIL REINFORCEMENTS ARRIVE FROM THE EASTERN COMMAND POST HERE | cardano_autokey | cardano_autokey | polyalphabetic | {
"type": "keyword",
"value": "ROME"
} | advanced | en | 84 | 84 | cipher_museum | 2.0 | public | null | null |
cda-0021726 | 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 20 23 15 19 17 21 1 18 5 3 9 16 8 5 18 5 14 3 18 25 16 20 19 4 9 7 18 1 16 8 19 23 9 20 8 20 23 15 16 15 12 25 2 9 21 19 1 12 16 8 1 2 5 20 19 20 8 5 4... | 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 20 23 15 19 17 21 1 18 5 3 9 16 8 5 18 5 14 3 18 25 16 20 19 4 9 7 18 1 16 8 19 23 9 20 8 20 23 15 16 15 12 25 2 9 21 19 1 12 16 8 1 2 5 20 19 20 8 5 4... | DIFFIE AND HELLMAN INTRODUCED PUBLIC KEY CRYPTOGRAPHY IN NINETEEN SEVENTY SIX TWO SQUARE CIPHER ENCRYPTS DIGRAPHS WITH TWO POLYBIUS ALPHABETS THE DETECTIVE STUDIES PATTERNS BEFORE MAKING CLAIMS ALAN TURING BROKE ENIGMA WITH CRIBS AND THE BOMBE MACHINE | aeneas_tacticus | aeneas_tacticus | null | {} | hard | en | 215 | 215 | synthetic_educational | null | null | [
"sequential_number_decode",
"frequency_analysis"
] | Aeneas Tacticus: Greek sequential-number cipher; A=1…Z=26. |
typex-v3-0216 | AAHNYDUABUTIQRHY | AAHNYDUABUTIQRHY | THE SENATE DECREES | typex | typex | machine | {
"type": "keyword",
"value": "EMPIRE"
} | expert | en | 16 | 16 | cipher_museum | 2.0 | public | null | null |
lorenz-v2-0498 | GOODMIGHTGOODNIGHTPARTINGISSUCHSWEETSORROWTHASISHALLSAYGOODNIGHTTILLMORROW | GOODMIGHTGOODNIGHTPARTINGISSUCHSWEETSORROWTHASISHALLSAYGOODNIGHTTILLMORROW | GOOD NIGHT GOOD NIGHT PARTING IS SUCH SWEET SORROW THAT I SHALL SAY GOOD NIGHT TILL MORROW | lorenz | lorenz | machine | {
"type": "seed",
"value": "STURGEON"
} | expert | en | 74 | 74 | cipher_museum | 2.0 | public | null | null |
bifid-v3-0507 | RGBREIUUDAYUDHWDHERGPRHET | RGBREIUUDAYUDHWDHERGPRHET | THE SHOT HEARD ROUND THE WORLD | bifid | bifid | fractionation | {
"type": "keyword",
"value": "TRIUMPH"
} | advanced | en | 25 | 25 | cipher_museum | 2.0 | public | null | null |
lorenz-v2-0035 | INGODWETRUST | INGODWETRUST | IN GOD WE TRUST | lorenz | lorenz | machine | {
"type": "seed",
"value": "TUNNY"
} | expert | en | 12 | 12 | cipher_museum | 2.0 | public | null | null |
red-type-a-v3-0172 | MTOQJUUREDDYCRWAGFROIRCOHIXADKYONBOFOVALTZAOPEJUTJUUYPCHYEPFUHIVDTMIMAPVCAN | MTOQJUUREDDYCRWAGFROIRCOHIXADKYONBOFOVALTZAOPEJUTJUUYPCHYEPFUHIVDTMIMAPVCAN | THE SPEED OF LIGHT IS THE ULTIMATE SPEED LIMIT IN THE UNIVERSE EINSTEIN DEMONSTRATED THIS | red_type_a | red_type_a | machine | {
"type": "keyword",
"value": "YAMATO"
} | advanced | en | 75 | 75 | cipher_museum | 2.0 | public | null | null |
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