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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
cda-0012252 | BADCU WLCVF UHSDN XALHF THXYW GUSXW ZUWVW FULVW MKDMP JOSUR ZHAGO HVQLS YPYKY EIGHQ NKKIJ PQRKE KRHYS FUSPU PFZKE BOREJ LNIJB VAXSL HAHIB MIPHI DRJPV GEDOB VPUKF PX | BADCU WLCVF UHSDN XALHF THXYW GUSXW ZUWVW FULVW MKDMP JOSUR ZHAGO HVQLS YPYKY EIGHQ NKKIJ PQRKE KRHYS FUSPU PFZKE BOREJ LNIJB VAXSL HAHIB MIPHI DRJPV GEDOB VPUKF PX | THE VIGENERE CIPHER USES A REPEATING KEYWORD COLUMNAR TRANSPOSITION READS COLUMNS IN KEY ORDER POLYBIUS ENCODED LETTERS AS PAIRS OF NUMBERS FROM ONE TO FIVE NEVER | vernam | vernam | null | {} | hard | en | 137 | 137 | synthetic_educational | null | null | [
"key_reuse_attack",
"information_theoretic_proof"
] | Vernam cipher: XOR-based stream cipher; with a random key equivalent to OTP. |
cda-0014696 | 3.1.8 6.4.2 14.1.6 17.2.2 12.1.5 14.3.5 5.4.1 10.3.5 7.1.8 6.4.4 19.6.1 7.2.5 5.3.9 19.3.1 15.1.2 12.5.6 11.6.8 2.4.5 1.6.9 6.6.1 16.5.7 10.5.7 15.3.7 2.6.4 15.1.1 12.1.10 12.4.2 5.3.5 8.4.4 8.5.1 20.5.7 5.6.9 4.5.1 5.5.1 19.3.6 12.2.3 16.5.2 2.3.9 14.3.7 5.5.5 11.3.2 18.3.6 7.2.10 17.6.5 12.3.5 16.5.4 5.1.4 5.1.8 16.4... | 3.1.8 6.4.2 14.1.6 17.2.2 12.1.5 14.3.5 5.4.1 10.3.5 7.1.8 6.4.4 19.6.1 7.2.5 5.3.9 19.3.1 15.1.2 12.5.6 11.6.8 2.4.5 1.6.9 6.6.1 16.5.7 10.5.7 15.3.7 2.6.4 15.1.1 12.1.10 12.4.2 5.3.5 8.4.4 8.5.1 20.5.7 5.6.9 4.5.1 5.5.1 19.3.6 12.2.3 16.5.2 2.3.9 14.3.7 5.5.5 11.3.2 18.3.6 7.2.10 17.6.5 12.3.5 16.5.4 5.1.4 5.1.8 16.4... | A MODEL CAN CLASSIFY PATTERNS BUT IT CAN ALSO BE WRONG BEAUFORT IS THE RECIPROCAL OF VIGENERE AND DECRYPTS ITSELF THE ONE TIME PAD IS THEORETICALLY UNBREAKABLE IF USED CORRECTLY CAESAR SHIFTED THE ALPHABET BY THREE POSITIONS | arnold_andre | arnold_andre | null | {} | hard | en | 188 | 188 | synthetic_educational | null | null | [
"book_cipher_attack",
"triple_index_search"
] | Arnold-André book cipher: coordinates (page.section.word) referencing a shared text. |
diana-v3-0425 | ONRBZXSSYQCDKUFA | ONRBZXSSYQCDKUFA | RENDER UNTO CAESAR | diana | diana | polyalphabetic | {
"type": "keyword",
"value": "FREEDOM"
} | intermediate | en | 16 | 16 | cipher_museum | 2.0 | public | null | null |
gronsfeld-v2-0847 | UIGVJDSGWQJFUEZSJGGGFOGDYIUJHYIJTGKMBIVYPOGRKUIGRQEDJXWDIERZSUADWEBVGFXOVRRPSTRB | UIGVJDSGWQJFUEZSJGGGFOGDYIUJHYIJTGKMBIVYPOGRKUIGRQEDJXWDIERZSUADWEBVGFXOVRRPSTRB | THE SECRET LIES BURIED BENEATH THE THIRD FLAGSTONE OF THE OLD CHURCH COURTYARD AT DAWN TOMORROW | gronsfeld | gronsfeld | polyalphabetic | {
"type": "numeric",
"value": "11235"
} | intermediate | en | 80 | 80 | cipher_museum | 2.0 | public | null | null |
argenti-v2-0189 | 70 17 67 71 23 32 75 17 26 23 65 83 12 37 82 20 81 17 56 77 32 66 18 28 37 82 83 89 63 79 20 18 41 22 23 44 26 64 75 17 25 66 82 28 37 38 18 23 83 65 20 67 60 83 77 72 20 79 83 22 75 82 63 26 77 44 17 66 13 20 56 41 22 18 | 70 17 67 71 23 32 75 17 26 23 65 83 12 37 82 20 81 17 56 77 32 66 18 28 37 82 83 89 63 79 20 18 41 22 23 44 26 64 75 17 25 66 82 28 37 38 18 23 83 65 20 67 60 83 77 72 20 79 83 22 75 82 63 26 77 44 17 66 13 20 56 41 22 18 | FOR GOD SO LOVED THE WORLD THAT HE GAVE HIS ONLY SON THAT WHOEVER BELIEVES SHALL NOT PERISH | argenti | argenti | nomenclator | {
"type": "seed",
"value": "PAPAL"
} | expert | en | 148 | 221 | cipher_museum | 2.0 | public | null | null |
red-type-a-v2-0333 | YZNECRYCEOLOMLOWOQOBGAHMBIYHYDAGOJPIFVCIOZUWGARNIGAMVTGAOXTUDORUSMUAFAACTNVYHKOXN | YZNECRYCEOLOMLOWOQOBGAHMBIYHYDAGOJPIFVCIOZUWGARNIGAMVTGAOXTUDORUSMUAFAACTNVYHKOXN | OBSERVATION EXPERIMENT AND REASON ARE THE THREE PILLARS OF ALL SCIENTIFIC INQUIRY AND PROGRESS | red_type_a | red_type_a | machine | {
"type": "keyword",
"value": "TOKYO"
} | advanced | en | 81 | 81 | cipher_museum | 2.0 | public | null | null |
cda-0008366 | OGPOFU RAQBRNF PL ESINEFVAU GUR OYCVOPRG GVS EOVY SSAQN PVCVSE JEVGSF GNKG VA O MVTMOU COGGREA | OGPOFU RAQBRNF PL ESINEFVAU GUR OYCVOPRG GVS EOVY SSAQN PVCVSE JEVGSF GNKG VA O MVTMOU COGGREA | ATBASH ENCODES BY REVERSING THE ALPHABET THE RAIL FENCE CIPHER WRITES TEXT IN A ZIGZAG PATTERN | porta | porta | null | {
"key": "JUSTICE"
} | medium | en | 79 | 79 | synthetic_educational | null | null | [] | |
trifid-v3-0501 | TYLUTQIRXAPTFOBTSMOOFTDGUUS+DRTSUPQJMOOPT+MUEBSINTJRGRFEQMXJSOVXTFTDGUJSCFESS | TYLUTQIRXAPTFOBTSMOOFTDGUUS+DRTSUPQJMOOPT+MUEBSINTJRGRFEQMXJSOVXTFTDGUJSCFESS | THE POWERS NOT DELEGATED TO THE UNITED STATES BY THE CONSTITUTION ARE RESERVED TO THE STATES | trifid | trifid | fractionation | {
"type": "keyword",
"value": "JUSTICE"
} | advanced | en | 77 | 77 | cipher_museum | 2.0 | public | null | null |
purple-v3-0066 | JSTADNESPQVVDZRFTZKCBZYARSIAUDOIKHORHJHZOKCQTZWQHJJKXOCUVSUTJVNEMWJGIGPBIO | JSTADNESPQVVDZRFTZKCBZYARSIAUDOIKHORHJHZOKCQTZWQHJJKXOCUVSUTJVNEMWJGIGPBIO | GENERAL SHERMAN MARCHED TO THE SEA THROUGH GEORGIA CUTTING A SIXTY MILE WIDE PATH OF RUIN | purple | purple | machine | {
"type": "seed",
"value": "TOKYO"
} | expert | en | 74 | 74 | cipher_museum | 2.0 | public | null | null |
jefferson-disk-054 | DFQYKIHSHTMOEDYYGPEDQPQIEUNTCBPORFUSUOXBOBYMPTBMFJPZYTYZXZODYZ | DFQYKIHSHTMOEDYYGPEDQPQIEUNTCBPORFUSUOXBOBYMPTBMFJPZYTYZXZODYZ | THE ENEMY KNOWS THE SYSTEM DESIGN YOUR CIPHER ACCORDINGLY WITH GREAT CARE | jefferson_disk | jefferson_disk | disk | {
"type": "disk_order",
"value": "3,1,5,2,4,6"
} | expert | en | 62 | 62 | cipher_museum | 0.2 | public | null | null |
lorenz-v2-0016 | COVERMYRETREAT | COVERMYRETREAT | COVER MY RETREAT | lorenz | lorenz | machine | {
"type": "seed",
"value": "TUNNY"
} | expert | en | 14 | 14 | cipher_museum | 2.0 | public | null | null |
argenti-v2-0219 | 37 82 83 13 28 84 15 63 71 20 34 17 44 66 28 41 25 75 60 26 59 83 33 67 72 44 37 22 70 23 56 66 18 20 25 83 81 37 17 67 13 20 32 23 89 68 41 12 63 44 84 83 75 64 22 66 20 16 32 83 77 72 65 20 56 37 17 28 12 69 41 67 63 26 75 16 72 66 82 25 23 38 | 37 82 83 13 28 84 15 63 71 20 34 17 44 66 28 41 25 75 60 26 59 83 33 67 72 44 37 22 70 23 56 66 18 20 25 83 81 37 17 67 13 20 32 23 89 68 41 12 63 44 84 83 75 64 22 66 20 16 32 83 77 72 65 20 56 37 17 28 12 69 41 67 63 26 75 16 72 66 82 25 23 38 | THE PACKAGE CONTAINS BLUEPRINTS FOR THE NEW TORPEDO GUIDANCE SYSTEM DELIVER TO ADMIRAL SMITH NOW | argenti | argenti | nomenclator | {
"type": "seed",
"value": "PAPAL"
} | expert | en | 164 | 245 | cipher_museum | 2.0 | public | null | null |
trifid-v2-0414 | IELFYXFUNIEHEP | IELFYXFUNIEHEP | LIBERTY OR DEATH | trifid | trifid | fractionation | {
"type": "keyword",
"value": "FREEDOM"
} | advanced | en | 14 | 14 | cipher_museum | 2.0 | public | null | null |
slidex-164 | LQDSCRKEIYWXHQZPUCTVNQTCBBFMIELUCTELCLXNUULRJPXAYWAZGIPBVI | LQDSCRKEIYWXHQZPUCTVNQTCBBFMIELUCTELCLXNUULRJPXAYWAZGIPBVI | ELEMENTARY MY DEAR WATSON THE GAME IS AFOOT AND THE CRIMINAL IS CLOSE | slidex | slidex | transposition | {
"type": "keyword",
"value": "MUSEUM"
} | advanced | en | 58 | 58 | cipher_museum | 0.2 | public | null | null |
alberti-disk-v2-0859 | VOKIYJRVFJPDFAQUUMLMYINMFITEUSIRSCBUJBWRSAQBEXQZSXBMYULPGRLOLNWMHKQMGMPQQLPUOLIN | VOKIYJRVFJPDFAQUUMLMYINMFITEUSIRSCBUJBWRSAQBEXQZSXBMYULPGRLOLNWMHKQMGMPQQLPUOLIN | THE AMBASSADOR HAS RECEIVED OUR MOST URGENT DISPATCHES AND AWAITS INSTRUCTIONS FROM LONDON HQ | alberti_disk | alberti_disk | disk | {
"type": "integer",
"value": 16
} | expert | en | 80 | 80 | cipher_museum | 2.0 | public | null | null |
bifid-v2-0153 | ISFVOORXLKNLWN | ISFVOORXLKNLWN | LIBERTY OR DEATH | bifid | bifid | fractionation | {
"type": "keyword",
"value": "FORTRESS"
} | advanced | en | 14 | 14 | cipher_museum | 2.0 | public | null | null |
copiale-v3-0124 | Q3 O1 G3 O7 B4 S7 H4 K8 G3 D5 E8 N3 | Q3 O1 G3 O7 B4 S7 H4 K8 G3 D5 E8 N3 | GOLD FROM LEAD | copiale | copiale | substitution | {
"type": "keyword",
"value": "TEMPLE"
} | advanced | en | 24 | 35 | cipher_museum | 2.0 | public | null | null |
fractionated-morse-v2-0137 | LLHIULMTWSOPQAVC | LLHIULMTWSOPQAVC | TARGET ACQUIRED | fractionated_morse | fractionated_morse | fractionation | {
"type": "keyword",
"value": "FORTRESS"
} | advanced | en | 16 | 16 | cipher_museum | 2.0 | public | null | null |
cda-0015781 | AKHAS HUSHD IBEHD ZEHGA HAKEH DIGLI NIWOL LACHE ESHUS HDIBE HYAZZ IEDZE HDZEH AKEHD IGLIN ITKIN BEDZE HTSAH MOASI DZEHM OASIA KHANA ASTSO SIDZE HDIBE HSHUS HDZEH MAEAK HAGAH DZEHM OASIA KHATS AHMAE TKINB EDZEH TSAHM OASID ZEHMO ASI | AKHAS HUSHD IBEHD ZEHGA HAKEH DIGLI NIWOL LACHE ESHUS HDIBE HYAZZ IEDZE HDZEH AKEHD IGLIN ITKIN BEDZE HTSAH MOASI DZEHM OASIA KHANA ASTSO SIDZE HDIBE HSHUS HDZEH MAEAK HAGAH DZEHM OASIA KHATS AHMAE TKINB EDZEH TSAHM OASID ZEHMO ASI | OBSERVABLE EVIDENCE COMES BEFORE CONFIDENCE CAESAR SHIFTED THE ALPHABET BY THREE POSITIONS THE MESSAGE WAS HIDDEN BUT NOT SECURE | navajo_code | navajo_code | null | {} | hard | en | 193 | 193 | synthetic_educational | null | null | [
"codebook_frequency",
"word_list_attack"
] | Navajo Code Talker cipher: Navajo words represent English letters. |
bazeries-v3-0706 | HIVTLOMMMFSASGFHTDSFITLUTJMBPVSOHMTHESPMBFTGAIPHTLYOBFHIBJLIAILBEBHBPAPOLYTTTTLTWMBVT | HIVTLOMMMFSASGFHTDSFITLUTJMBPVSOHMTHESPMBFTGAIPHTLYOBFHIBJLIAILBEBHBPAPOLYTTTTLTWMBVT | CONGRESS SHALL MAKE NO LAW RESPECTING AN ESTABLISHMENT OF RELIGION OR PROHIBITING THE FREE EXERCISE | bazeries | bazeries | transposition | {
"type": "integer",
"value": 71
} | advanced | en | 85 | 85 | cipher_museum | 2.0 | public | null | null |
fialka-v3-0178 | FNPZJLAHNKHZJNVZPJZWVNQJABICYJSLEMLWBYRYSDIZDKFTFXPATAPKOHKSXRUUBMSPNBRO | FNPZJLAHNKHZJNVZPJZWVNQJABICYJSLEMLWBYRYSDIZDKFTFXPATAPKOHKSXRUUBMSPNBRO | DO UNTO OTHERS AS YOU WOULD HAVE THEM DO UNTO YOU THIS IS THE GOLDEN RULE OF ALL RELIGIONS | fialka | fialka | machine | {
"type": "seed",
"value": "KREMLIN"
} | expert | en | 72 | 72 | cipher_museum | 2.0 | public | null | null |
kryha-v3-0086 | EWRBRTWNREKMKWFEBLTRRGRKTUYMPCNWZJJCZLHKEFHBTXFBXDPHSGTLDMDKSKDSLJKFHKVFJVVPJRV | EWRBRTWNREKMKWFEBLTRRGRKTUYMPCNWZJJCZLHKEFHBTXFBXDPHSGTLDMDKSKDSLJKFHKVFJVVPJRV | ALL PERSONS BORN OR NATURALIZED IN THE UNITED STATES ARE CITIZENS SUBJECT TO EQUAL PROTECTION | kryha | kryha | machine | {
"type": "keyword",
"value": "MUNICH"
} | expert | en | 79 | 79 | cipher_museum | 2.0 | public | null | null |
porta-v2-0688 | GRBRMPAMUWZVYYVHSOHRUAWBIZYPPBCNLFJTHWUJCRXOGLBTNIEGHFJZRCOMUIYFJAYL | GRBRMPAMUWZVYYVHSOHRUAWBIZYPPBCNLFJTHWUJCRXOGLBTNIEGHFJZRCOMUIYFJAYL | NEVER IN THE FIELD OF HUMAN CONFLICT WAS SO MUCH OWED BY SO MANY TO SO FEW BRAVE SOULS | porta | porta | polyalphabetic | {
"type": "keyword",
"value": "PAPAL"
} | intermediate | en | 68 | 68 | cipher_museum | 2.0 | public | null | null |
cda-0006254 | GUS YVPEOEL CESFSEISF XABJYSQUS TBE GUS QBZZHAWGL GVS OEQVVGSNGHER FVBHYR ZONR ZVFHFS UOERRE CHPYNP WASEOFGEHNGHER RSFSEIRF QOESTHY RRFVUA | GUS YVPEOEL CESFSEISF XABJYSQUS TBE GUS QBZZHAWGL GVS OEQVVGSNGHER FVBHYR ZONR ZVFHFS UOERRE CHPYNP WASEOFGEHNGHER RSFSEIRF QOESTHY RRFVUA | THE LIBRARY PRESERVES KNOWLEDGE FOR THE COMMUNITY THE ARCHITECTURE SHOULD MAKE MISUSE HARDER PUBLIC INFRASTRUCTURE DESERVES CAREFUL DESIGN | porta | porta | null | {
"key": "PATTERN"
} | hard | en | 121 | 121 | synthetic_educational | null | null | [
"kasiski_examination",
"index_of_coincidence"
] | Porta: 13-row table polyalphabetic cipher; reciprocal (encrypt = decrypt). |
enigma-v2-0987 | YIMICPUSDDOYGJNYMFKVYTHNNOXUZATCCPXCCSXCPWMKNUTOMZKWMEROUQXINKRGMQZESPXYWUVHBCGJLUHO | YIMICPUSDDOYGJNYMFKVYTHNNOXUZATCCPXCCSXCPWMKNUTOMZKWMEROUQXINKRGMQZESPXYWUVHBCGJLUHO | THE REGIMENT WILL HOLD ITS POSITION UNTIL REINFORCEMENTS ARRIVE FROM THE EASTERN COMMAND POST HERE | enigma | enigma | machine | {
"type": "rotor_start",
"value": "VWX"
} | expert | en | 84 | 84 | cipher_museum | 2.0 | public | null | null |
pigpen-v2-0101 | ├ ┼ ╱ ╳ ╲ ¬ ┬ ¬• ⌐ ┼• ├ ╱ ┴ ┼ ┐• ⌐ ¬• ¬• ┼ ╲ ┐ ┼• ├ ┼ ┐• ╳• ┼ ¬• ╳ ╳• ┼ ┼• ┼• ┼ ╲ ╲ ╳ ┼ ╳ ╲ △ ╱ ╲ ¬ ┬ ╱ ╳ △ ╱ ┼• ├ ╳ ┐• ╱ ╳ △ ┼ ┴ ┐• ├ ┼ ┐• ¬• ┐ ¬ ┬ △ ╱ ╲ ⌐ ├• ├• ┼ ┼• ┬ ¬• ╳ | ├ ┼ ╱ ╳ ╲ ¬ ┬ ¬• ⌐ ┼• ├ ╱ ┴ ┼ ┐• ⌐ ¬• ¬• ┼ ╲ ┐ ┼• ├ ┼ ┐• ╳• ┼ ¬• ╳ ╳• ┼ ┼• ┼• ┼ ╲ ╲ ╳ ┼ ╳ ╲ △ ╱ ╲ ¬ ┬ ╱ ╳ △ ╱ ┼• ├ ╳ ┐• ╱ ╳ △ ┼ ┴ ┐• ├ ┼ ┐• ¬• ┐ ¬ ┬ △ ╱ ╲ ⌐ ├• ├• ┼ ┼• ┬ ¬• ╳ | DEUTSCHLAND UBER ALLES IN DER WELT WENN ES STETS ZU SCHUTZ UND TRUTZE BRÜDERLICH ZUSAMMENHÄLT | pigpen | pigpen | substitution | {
"type": "none",
"value": null
} | beginner | en | 98 | 174 | cipher_museum | 2.0 | public | null | null |
solitaire-v2-0097 | NYTGESOWRURXBRAPPUSJJEIMKBDUBSIRRCPWEXIBEWRREYNCVGAIGTNRLDNPKINYBFKFOMNVPWRSMGYNEAXR | NYTGESOWRURXBRAPPUSJJEIMKBDUBSIRRCPWEXIBEWRREYNCVGAIGTNRLDNPKINYBFKFOMNVPWRSMGYNEAXR | VENONA REVEALED THAT NUMEROUS SOVIET AGENTS HAD PENETRATED THE HIGHEST LEVELS OF THE US GOVERNMENT | solitaire | solitaire | stream | {
"type": "none",
"value": null
} | expert | en | 84 | 84 | cipher_museum | 2.0 | public | null | null |
alberti-disk-v3-0549 | WPJXQJRYIVEIEPQXCAXM | WPJXQJRYIVEIEPQXCAXM | THE REDCOATS ARE COMING | alberti_disk | alberti_disk | disk | {
"type": "integer",
"value": 14
} | expert | en | 20 | 20 | cipher_museum | 2.0 | public | null | null |
kama-sutra-v2-0277 | EGCFE VCE BTGZSN | EGCFE VCE BTGZSN | TRUST BUT VERIFY | kama_sutra | kama_sutra | substitution | {
"type": "keyword",
"value": "INDIA"
} | intermediate | en | 14 | 16 | cipher_museum | 2.0 | public | null | null |
cda-0018609 | 1.5.5 13.2.5 10.2.5 7.6.1 15.2.8 3.1.2 16.5.5 12.5.5 20.3.1 9.2.7 1.3.6 6.1.7 7.3.4 10.6.7 3.1.7 15.3.5 12.4.2 19.4.7 6.6.4 10.2.4 1.5.3 11.3.3 9.4.5 17.2.3 5.1.2 4.2.5 5.2.8 15.1.7 9.3.5 15.4.6 3.6.1 2.6.2 5.4.2 15.6.7 19.3.9 9.6.6 16.5.6 18.6.3 17.3.9 20.4.5 11.5.8 15.4.4 12.3.5 17.1.5 19.4.2 9.6.7 19.3.9 15.3.10 18.... | 1.5.5 13.2.5 10.2.5 7.6.1 15.2.8 3.1.2 16.5.5 12.5.5 20.3.1 9.2.7 1.3.6 6.1.7 7.3.4 10.6.7 3.1.7 15.3.5 12.4.2 19.4.7 6.6.4 10.2.4 1.5.3 11.3.3 9.4.5 17.2.3 5.1.2 4.2.5 5.2.8 15.1.7 9.3.5 15.4.6 3.6.1 2.6.2 5.4.2 15.6.7 19.3.9 9.6.6 16.5.6 18.6.3 17.3.9 20.4.5 11.5.8 15.4.4 12.3.5 17.1.5 19.4.2 9.6.7 19.3.9 15.3.10 18.... | POLYBIUS ENCODED LETTERS AS PAIRS OF NUMBERS FROM ONE TO FIVE DO NOT CONFUSE OBFUSCATION WITH ENCRYPTION | arnold_andre | arnold_andre | null | {} | hard | en | 88 | 88 | synthetic_educational | null | null | [
"book_cipher_attack",
"triple_index_search"
] | Arnold-André book cipher: coordinates (page.section.word) referencing a shared text. |
great-cipher-v2-0280 | 117 145 158 178 140 160 118 172 157 165 142 142 | 117 145 158 178 140 160 118 172 157 165 142 142 | COURAGE IN DARKNESS | great_cipher | great_cipher | nomenclator | {
"type": "seed",
"value": "FRANCE"
} | expert | en | 36 | 47 | cipher_museum | 2.0 | public | null | null |
hill-v3-0020 | KIWXWHYGBGPB | KIWXWHYGBGPB | GOLD FROM LEAD | hill | hill | polygraphic | {
"a": 3,
"b": 5,
"c": 2,
"d": 9
} | advanced | en | 12 | 12 | cipher_museum | 2.0 | public | null | null |
rail-fence-v2-0492 | TFFDXHANTHOJOONEITSENNOASAAYARUAISYNLIYIGDTTANARSGDTODHSLAEEEODUELUHNHSATTLITSENTAYOOTARRSIAENISRTSRERHHDEESWTBSNHFHRYHDTUEEPLSEETUAEEIITOENRALAEIRTELBFNNDLVNHL | TFFDXHANTHOJOONEITSENNOASAAYARUAISYNLIYIGDTTANARSGDTODHSLAEEEODUELUHNHSATTLITSENTAYOOTARRSIAENISRTSRERHHDEESWTBSNHFHRYHDTUEEPLSEETUAEEIITOENRALAEIRTELBFNNDLVNHL | THAT ON THE FIRST DAY OF JANUARY IN THE YEAR OF OUR LORD ONE THOUSAND EIGHT HUNDRED AND SIXTY THREE ALL PERSONS HELD AS SLAVES WITHIN ANY STATE IN REBELLION AGAINST THE UNITED STATES SHALL BE FREE | rail_fence | rail_fence | transposition | {
"type": "integer",
"value": 10
} | intermediate | en | 160 | 160 | cipher_museum | 2.0 | public | null | null |
purple-v2-0335 | NQEDSYESMOAICQUMJTZWVJKTJCNGYYUCBRFNXBBILQEIPUFZVFEXZYOCXXKUIUPZOHMWEXJZXDHYMKC | NQEDSYESMOAICQUMJTZWVJKTJCNGYYUCBRFNXBBILQEIPUFZVFEXZYOCXXKUIUPZOHMWEXJZXDHYMKC | THE PRICE OF LIBERTY IS ETERNAL VIGILANCE AND THE WILL TO DEFEND IT AGAINST ALL FOES AND THREATS | purple | purple | machine | {
"type": "seed",
"value": "SAKURA"
} | expert | en | 79 | 79 | cipher_museum | 2.0 | public | null | null |
lorenz-v3-0025 | CHARTTHEUNKNOWN | CHARTTHEUNKNOWN | CHART THE UNKNOWN | lorenz | lorenz | machine | {
"type": "seed",
"value": "TUNNY"
} | expert | en | 15 | 15 | cipher_museum | 2.0 | public | null | null |
typex-206 | EFVYULLNWLQQDRO | EFVYULLNWLQQDRO | FORWARD MARCH NOW | typex | typex | machine | {
"type": "keyword",
"value": "SECRET"
} | expert | en | 15 | 15 | cipher_museum | 0.2 | public | null | null |
autokey-v3-0221 | EPFGRLRELMUSMKCSCFVYU | EPFGRLRELMUSMKCSCFVYU | THE CASTLE IS SURROUNDED | autokey | autokey | polyalphabetic | {
"type": "keyword",
"value": "LIBERTY"
} | intermediate | en | 21 | 21 | cipher_museum | 2.0 | public | null | null |
cda-0008587 | AHLITATAGLYTENEIOTDSLSCPIWARNNEAHLTAATRFAETRBORENTCOFPAOHLUEPCTANIPREUELASLENGNLFAMODSAARAXEIUCAUSOMSNLXCENHNTHNOSSSXISCLRPOIDIBOXPATEEUWNEFUBX | AHLITATAGLYTENEIOTDSLSCPIWARNNEAHLTAATRFAETRBORENTCOFPAOHLUEPCTANIPREUELASLENGNLFAMODSAARAXEIUCAUSOMSNLXCENHNTHNOSSSXISCLRPOIDIBOXPATEEUWNEFUBX | AN AFFINE CIPHER APPLIES A LINEAR FUNCTION TO EACH LETTER HUMAN READABLE OUTPUT SHOULD SHOW ALL REASONING STEPS A MODEL CAN CLASSIFY PATTERNS BUT IT CAN ALSO BE WRONG | scytale | scytale | null | {
"cols": 11
} | hard | en | 143 | 143 | synthetic_educational | null | null | [] | |
rail-fence-267 | TEHSTESTIRPA | TEHSTESTIRPA | THE TRAP IS SET | rail_fence | rail_fence | transposition | {
"type": "integer",
"value": 6
} | intermediate | en | 12 | 12 | cipher_museum | 0.2 | public | null | null |
kryha-v3-0049 | TYETJDBWPWUZARVLKLKJNGUYDEUZECNWDQZJRQNADIFAOYQJPMFRCIZAQSTNXTSCQCBBMDO | TYETJDBWPWUZARVLKLKJNGUYDEUZECNWDQZJRQNADIFAOYQJPMFRCIZAQSTNXTSCQCBBMDO | IT WAS A BRIGHT COLD DAY IN APRIL AND THE CLOCKS WERE STRIKING THIRTEEN ACROSS THE CITY | kryha | kryha | machine | {
"type": "keyword",
"value": "MUNICH"
} | expert | en | 71 | 71 | cipher_museum | 2.0 | public | null | null |
cda-0021388 | 67 33 1 14 46 26 3 68 93 50 25 94 23 3 22 87 59 63 58 26 35 2 30 45 46 79 59 57 22 15 48 34 48 1 81 64 64 48 87 3 92 63 68 43 59 60 43 23 96 61 60 88 33 52 22 60 48 21 25 49 79 33 43 68 32 64 49 48 43 63 1 91 68 23 3 81 43 67 48 46 76 58 22 4 27 80 66 81 24 87 39 82 59 40 11 | 67 33 1 14 46 26 3 68 93 50 25 94 23 3 22 87 59 63 58 26 35 2 30 45 46 79 59 57 22 15 48 34 48 1 81 64 64 48 87 3 92 63 68 43 59 60 43 23 96 61 60 88 33 52 22 60 48 21 25 49 79 33 43 68 32 64 49 48 43 63 1 91 68 23 3 81 43 67 48 46 76 58 22 4 27 80 66 81 24 87 39 82 59 40 11 | BEAUFORT IS THE RECIPROCAL OF VIGENERE AND DECRYPTS ITSELF THE DETECTIVE STUDIES PATTERNS BEFORE MAKING CLAIMS | homophonic | homophonic | null | {} | hard | en | 95 | 95 | synthetic_educational | null | null | [
"frequency_analysis",
"multiple_ciphertext_attack"
] | Homophonic substitution: each letter maps to multiple possible numbers. |
adfgvx-v2-0125 | DFDVVDFXVVVADFFGGDVAFFVFVFGDVVGAADXVVFFADVGAAFDXDVFGFXGFXAGDADADGGDAAVGFFFGGAGDAAFAAFDADDDDFFAAFFVAAFGDAAFAAFFFFFFFGVVGGGGAGGDXFVDXDFXGVGADDGDGGDVFVFVXXVVAFFVAFFAADFFXVGVVFVAAADFFGGGGAFDAAAFFFDFGAFAGFGDAFAGAFFADGAAGDFGGDFFGFAFGAGADFGAFADDFFDAFADFAGFGFGDFFAFFFGGFFAGAGGDAAGFAFAFADDAFDGAGDGXDAXFVVFFADGVAFVFXAFFAGFDXGXGFXF... | DFDVVDFXVVVADFFGGDVAFFVFVFGDVVGAADXVVFFADVGAAFDXDVFGFXGFXAGDADADGGDAAVGFFFGGAGDAAFAAFDADDDDFFAAFFVAAFGDAAFAAFFFFFFFGVVGGGGAGGDXFVDXDFXGVGADDGDGGDVFVFVXXVVAFFVAFFAADFFXVGVVFVAAADFFGGGGAFDAAAFFFDFGAFAGFGDAFAGAFFADGAAGDFGGDFFGFAFGAGADFGAFADDFFDAFADFAGFGFGDFFAFFFGGFFAGAGGDAAGFAFAFADDAFDGAGDGXDAXFVVFFADGVAFVFXAFFAGFDXGXGFXF... | 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 | adfgvx | adfgvx | fractionation | {
"polybius": "PALACE",
"columnar": "BATTLE"
} | advanced | en | 344 | 344 | cipher_museum | 2.0 | public | null | null |
fractionated-morse-v3-0156 | DWMBKMHJWAVXTAPVXJXFAMWBKJVBABHFBWLDVAMHARFBKOQRDVROQBAMBRTQPSAMVHTBKFUJPHDQVKTQWAQAMHC | DWMBKMHJWAVXTAPVXJXFAMWBKJVBABHFBWLDVAMHARFBKOQRDVROQBAMBRTQPSAMVHTBKFUJPHDQVKTQWAQAMHC | DO NOT GO GENTLE INTO THAT GOOD NIGHT OLD AGE SHOULD BURN AND RAVE AT CLOSE OF DAY RAGE RAGE | fractionated_morse | fractionated_morse | fractionation | {
"type": "keyword",
"value": "FORTRESS"
} | advanced | en | 87 | 87 | cipher_museum | 2.0 | public | null | null |
typex-009 | KHDLVZRDUOQKAMVMGWBUI | KHDLVZRDUOQKAMVMGWBUI | SUPPLY LINE COMPROMISED | typex | typex | machine | {
"type": "keyword",
"value": "TYPEX"
} | expert | en | 21 | 21 | cipher_museum | 0.2 | public | null | null |
affine-v3-1345 | BHC FKPJ KUP OKJ AI KRC FKPJ ERJ BHKU IHEFB FKNC BHC FKPJ BHS OKJ GABH EFF BHARC HCEPB ERJ GABH EFF BHS IKUF ERJ GABH EFF BHS YAOHB ERJ BHCIC GKPJI GHAQH A QKYYERJ BHCC BHAI JES IHEFF XC AR BHARC HCEPB | BHC FKPJ KUP OKJ AI KRC FKPJ ERJ BHKU IHEFB FKNC BHC FKPJ BHS OKJ GABH EFF BHARC HCEPB ERJ GABH EFF BHS IKUF ERJ GABH EFF BHS YAOHB ERJ BHCIC GKPJI GHAQH A QKYYERJ BHCC BHAI JES IHEFF XC AR BHARC HCEPB | 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 | affine | affine | substitution | {
"a": 19,
"b": 4
} | beginner | en | 159 | 201 | cipher_museum | 2.0 | public | null | null |
cda-0011161 | GNPH EWFM QYOV ZEGU BHYR PSGR FGSR IAQS EFQF HGWA L | GNPH EWFM QYOV ZEGU BHYR PSGR FGSR IAQS EFQF HGWA L | SECURITY CLAIMS SHOULD BE TESTED UNDER SCRUTINY | porta | porta | null | {
"key": "LIBRARY"
} | medium | en | 41 | 41 | synthetic_educational | null | null | [] | |
straddling-checkerboard-v3-0128 | 6262374142215741626725 | 6262374142215741626725 | THE WIND IS WITH US | straddling_checkerboard | straddling_checkerboard | substitution | {
"type": "top_row",
"value": "LIONSTRACE"
} | advanced | en | 22 | 22 | cipher_museum | 2.0 | public | null | null |
joseon-yeokhak-v3-0214 | ESPRLEPDSZWOQTCX | ESPRLEPDSZWOQTCX | THE GATES HOLD FIRM | joseon_yeokhak | joseon_yeokhak | substitution | {
"type": "keyword",
"value": "HANGUL"
} | beginner | en | 16 | 16 | cipher_museum | 2.0 | public | null | null |
joseon-yeokhak-v2-0143 | QCRSRASGGOUSTCZZCKG | QCRSRASGGOUSTCZZCKG | CODED MESSAGE FOLLOWS | joseon_yeokhak | joseon_yeokhak | substitution | {
"type": "keyword",
"value": "JOSEON"
} | beginner | en | 19 | 19 | cipher_museum | 2.0 | public | null | null |
bifid-la-018 | PVMVRQQVFCVDB | PVMVRQQVFCVDB | IN VINO VERITAS | bifid | bifid | fractionation | {
"type": "keyword",
"value": "CIPHER"
} | advanced | la | 13 | 13 | cipher_museum | 0.2 | public | null | null |
cda-0021599 | lkaiin ctaiin otol okedy qotedy okshy rcheol chedy raiin oror sheedy chedy choldaiin ykcheol otain chol shedy shor chor cheol shor okshy okshy shor qokedy okshy okal dal sharal okain qotedy ytaiin qokal okal ytaiin chor ytaiin chedy sharal chor qotedy shor oxed chedy dal kaiiin daiin qokeedy lkaiin lkaiin ypchol daral ... | lkaiin ctaiin otol okedy qotedy okshy rcheol chedy raiin oror sheedy chedy choldaiin ykcheol otain chol shedy shor chor cheol shor okshy okshy shor qokedy okshy okal dal sharal okain qotedy ytaiin qokal okal ytaiin chor ytaiin chedy sharal chor qotedy shor oxed chedy dal kaiiin daiin qokeedy lkaiin lkaiin ypchol daral ... | TRANSPOSITION CIPHERS REARRANGE LETTERS WITHOUT SUBSTITUTION THE BEST LESSONS SHOW WHERE THE METHOD FAILS PEER REVIEW AND REPRODUCIBILITY MATTER IN RESEARCH THE INDEX OF COINCIDENCE IS A USEFUL CLUE | voynich_render | voynich_render | null | {} | hard | en | 291 | 291 | synthetic_educational | null | null | [
"statistical_analysis",
"unsolved"
] | Voynich manuscript: undeciphered 15th-century script; pseudo-syllabic output. |
cda-0002467 | LFCONRHSLODBIENIETHIUPERSADNEEISCNEENIOTDFCXELBPIUHUEIRRICOTHWADTONSRSNITTENIXETUAECEAAFEECNEASRCBEHECNTYTMAOTRETORXASSOTSITTOQPFHXYTTRFIYOTNOIRODNBCSCSTNEECIPPUROHCEHOSIRAOI | LFCONRHSLODBIENIETHIUPERSADNEEISCNEENIOTDFCXELBPIUHUEIRRICOTHWADTONSRSNITTENIXETUAECEAAFEECNEASRCBEHECNTYTMAOTRETORXASSOTSITTOQPFHXYTTRFIYOTNOIRODNBCSCSTNEECIPPUROHCEHOSIRAOI | INDEX OF COINCIDENCE MEASURES LETTER FREQUENCY DISTRIBUTION CAESAR SHIFTED THE ALPHABET BY THREE POSITIONS DO NOT CONFUSE OBFUSCATION WITH ENCRYPTION HISTORICAL CIPHERS ARE TEACHERS NOT PROTECTION | double_transposition | double_transposition | null | {
"key1": "SECURE",
"key2": "SIGNAL"
} | hard | en | 174 | 174 | synthetic_educational | null | null | [
"key_length_search",
"anagram_recovery"
] | Double columnar transposition: apply columnar twice for stronger security. |
joseon-yeokhak-v2-0002 | KIZBPIOMUCABJMLMABZWGML | KIZBPIOMUCABJMLMABZWGML | CARTHAGE MUST BE DESTROYED | joseon_yeokhak | joseon_yeokhak | substitution | {
"type": "keyword",
"value": "SEOUL"
} | beginner | en | 23 | 23 | cipher_museum | 2.0 | public | null | null |
chaocipher-v2-0261 | AWKUNHKZCKVZQDOH | AWKUNHKZCKVZQDOH | THE HARBOR IS CLEAR | chaocipher | chaocipher | machine | {
"type": "keyword",
"value": "FREEDOM"
} | advanced | en | 16 | 16 | cipher_museum | 2.0 | public | null | null |
cardano-autokey-v3-0386 | YRIHGHCHALVJSSQMIQKIFOKHVZXALQPRIHGHMMINAPAAALALKUZOHRELFPSTFLWCVPTOOWBF | YRIHGHCHALVJSSQMIQKIFOKHVZXALQPRIHGHMMINAPAAALALKUZOHRELFPSTFLWCVPTOOWBF | DO UNTO OTHERS AS YOU WOULD HAVE THEM DO UNTO YOU THIS IS THE GOLDEN RULE OF ALL RELIGIONS | cardano_autokey | cardano_autokey | polyalphabetic | {
"type": "keyword",
"value": "VENICE"
} | advanced | en | 72 | 72 | cipher_museum | 2.0 | public | null | null |
cda-0010547 | TBBRN QHQOG WBAOY GBBYF RKCYO VAGUS WEYVZ VGFRV TEOCV OAQGE WUEOC USESD HRAQW SFNKC BFSFV ZCYSQ WCURE FQELC GBUEO CULES JOEQF COGWN ANNOA RQOEN THYGU VAYWA TUHZO AENOQ OPYSB HGCHG FUBHY RFVBJ OYNES OFBAW AUFGR CF | TBBRN QHQOG WBAOY GBBYF RKCYO VAGUS WEYVZ VGFRV TEOCV OAQGE WUEOC USESD HRAQW SFNKC BFSFV ZCYSQ WCURE FQELC GBUEO CULES JOEQF COGWN ANNOA RQOEN THYGU VAYWA TUHZO AENOQ OPYSB HGCHG FUBHY RFVBJ OYNES OFBAW AUFGR CF | GOOD EDUCATIONAL TOOLS EXPLAIN THEIR LIMITS DIGRAPH AND TRIGRAPH FREQUENCIES EXPOSE SIMPLE CIPHERS CRYPTOGRAPHY REWARDS PATIENCE AND CAREFUL THINKING HUMAN READABLE OUTPUT SHOULD SHOW ALL REASONING STEPS | porta | porta | null | {
"key": "JUSTICE"
} | hard | en | 177 | 177 | synthetic_educational | null | null | [] | |
chaocipher-v2-0196 | YCBMUJSFFHWTILRINOJCHXMZMTQKNUKKYFXKWMZLILALJYFMAWWBCZRLLVLAEQPZFOOJRWD | YCBMUJSFFHWTILRINOJCHXMZMTQKNUKKYFXKWMZLILALJYFMAWWBCZRLLVLAEQPZFOOJRWD | QUOTH THE RAVEN NEVERMORE THE BIRD SAT ON THE BUST OF PALLAS JUST ABOVE MY CHAMBER DOOR | chaocipher | chaocipher | machine | {
"type": "keyword",
"value": "LIBERTY"
} | advanced | en | 71 | 71 | cipher_museum | 2.0 | public | null | null |
two-square-086 | FMLLZESFAWLZ | FMLLZESFAWLZ | RALLY AT DAWN | two_square | two_square | polygraphic | {
"key1": "CIPHER",
"key2": "MUSEUM"
} | advanced | en | 12 | 12 | cipher_museum | 0.2 | public | null | null |
cda-0020590 | 11 44 12 11 43 23 15 33 13 34 14 15 43 12 54 42 15 51 15 42 43 24 33 22 44 23 15 11 31 35 23 11 12 15 44 11 44 42 11 33 43 35 11 42 15 33 44 44 34 34 31 43 23 34 45 31 14 43 23 34 52 24 44 43 42 15 11 43 34 33 24 33 22 15 51 15 42 54 43 54 43 44 15 32 33 15 15 14 43 11 33 23 34 33 15 43 44 44 23 42 15 11 44 32 34 14 15... | 11 44 12 11 43 23 15 33 13 34 14 15 43 12 54 42 15 51 15 42 43 24 33 22 44 23 15 11 31 35 23 11 12 15 44 11 44 42 11 33 43 35 11 42 15 33 44 44 34 34 31 43 23 34 45 31 14 43 23 34 52 24 44 43 42 15 11 43 34 33 24 33 22 15 51 15 42 54 43 54 43 44 15 32 33 15 15 14 43 11 33 23 34 33 15 43 44 44 23 42 15 11 44 32 34 14 15... | ATBASH ENCODES BY REVERSING THE ALPHABET A TRANSPARENT TOOL SHOULD SHOW ITS REASONING EVERY SYSTEM NEEDS AN HONEST THREAT MODEL | polybius | polybius | null | {} | hard | en | 108 | 108 | synthetic_educational | null | null | [
"pair_decode",
"frequency_analysis"
] | Polybius square: 5×5 grid maps letters to two-digit row-column pairs. |
cda-0012288 | 802 999 854 806 873 859 800 833 814 999 824 854 999 801 999 851 844 810 999 861 856 813 809 999 805 874 999 856 847 802 853 859 801 839 856 999 858 844 999 814 840 806 852 872 845 857 999 838 814 854 856 802 818 813 854 999 858 866 843 999 854 850 861 800 851 813 999 808 824 845 822 812 852 999 814 839 807 851 874 847 ... | 802 999 854 806 873 859 800 833 814 999 824 854 999 801 999 851 844 810 999 861 856 813 809 999 805 874 999 856 847 802 853 859 801 839 856 999 858 844 999 814 840 806 852 872 845 857 999 838 814 854 856 802 818 813 854 999 858 866 843 999 854 850 861 800 851 813 999 808 824 845 822 812 852 999 814 839 807 851 874 847 ... | A SCYTALE IS A ROD USED BY SPARTANS TO ENCRYPT MESSAGES TWO SQUARE CIPHER ENCRYPTS DIGRAPHS WITH TWO POLYBIUS ALPHABETS | culper_ring | culper_ring | null | {} | hard | en | 100 | 100 | synthetic_educational | null | null | [
"codebook_frequency",
"number_range_analysis"
] | Culper Ring code: Washington's three-digit codebook numbers (800–999 range). |
vigenere-v2-1354 | JCQSUAFNBJTWFGZVBVBUPQNHVZSASDFTBFTLGNGJLAOZZUUNZFUUGVVICERVYKVHYOSNJPHFGWCSSEMLUWGG | JCQSUAFNBJTWFGZVBVBUPQNHVZSASDFTBFTLGNGJLAOZZUUNZFUUGVVICERVYKVHYOSNJPHFGWCSSEMLUWGG | CODED TRANSMISSION INDICATES ENEMY FORCES ASSEMBLING ALONG THE BORDER WITH HEAVY ARTILLERY UNITS | vigenere | vigenere | polyalphabetic | {
"type": "keyword",
"value": "HONOR"
} | intermediate | en | 84 | 84 | cipher_museum | 2.0 | public | null | null |
cda-0013269 | PEERR EVIEZ ANDRZ PRODX CIBIL ITYMZ TTERZ NRESZ ARCHX HEBIF IDCIX HERCO MBINE SAPOZ YBIUS SQUAZ EWITZ TRANS POSIT IONBC | PEERR EVIEZ ANDRZ PRODX CIBIL ITYMZ TTERZ NRESZ ARCHX HEBIF IDCIX HERCO MBINE SAPOZ YBIUS SQUAZ EWITZ TRANS POSIT IONBC | PEER REVIEW AND REPRODUCIBILITY MATTER IN RESEARCH THE BIFID CIPHER COMBINES A POLYBIUS SQUARE WITH TRANSPOSITION | commercial_code | commercial_code | null | {} | hard | en | 100 | 100 | synthetic_educational | null | null | [
"codebook_frequency",
"five_letter_group_analysis"
] | Commercial code: five-letter groups from a codebook, often ending in X or Z. |
m209-001 | ELJEETDKAEHS | ELJEETDKAEHS | ATTACK AT DAWN | m209 | m209 | machine | {
"type": "seed",
"value": "HAGELIN"
} | expert | en | 12 | 12 | cipher_museum | 0.2 | public | null | null |
cda-0018269 | 0408 05985 0963 07875 6305 00329 03843 1600 2857 06007 0401 05728 04732 1278 6621 05983 1638 1328 00677 07934 05974 05082 0392 05659 06355 00387 04485 5988 06310 04788 01602 04475 0959 05736 7889 05066 6365 04130 1640 05985 5972 00385 02275 1576 05967 | 0408 05985 0963 07875 6305 00329 03843 1600 2857 06007 0401 05728 04732 1278 6621 05983 1638 1328 00677 07934 05974 05082 0392 05659 06355 00387 04485 5988 06310 04788 01602 04475 0959 05736 7889 05066 6365 04130 1640 05985 5972 00385 02275 1576 05967 | A SCYTALE IS A ROD USED BY SPARTANS TO ENCRYPT MESSAGES | zimmermann | zimmermann | null | {} | medium | en | 45 | 45 | synthetic_educational | null | null | [
"codebook_frequency",
"number_group_analysis"
] | Zimmermann Telegram code: WWI German diplomatic numeric codebook cipher. |
adfgvx-v2-0011 | DFDFVGDAGAXDVXFGFFAAADDDVGVA | DFDFVGDAGAXDVXFGFFAAADDDVGVA | TARGET ACQUIRED | adfgvx | adfgvx | fractionation | {
"polybius": "PALACE",
"columnar": "BATTLE"
} | advanced | en | 28 | 28 | cipher_museum | 2.0 | public | null | null |
vic-v3-0306 | 908228718386908386818712898980826868128968585 | 908228718386908386818712898980826868128968585 | THE PRINTING PRESS CHANGES ALL | vic | vic | substitution | {
"type": "keyword",
"value": "FREEDOM"
} | advanced | en | 45 | 45 | cipher_museum | 2.0 | public | null | null |
cda-0015137 | K r· L Γ· ─ Γ L ⌣ ┘· ⌐· r ┘· Γ· ─ r Γ· Γ L ─ r L Γ· X ⌐ X· X L ⌐· X· └ r └ X· L ┌ ┘· Γ L ┌· ─ L ─ r ┌· ⌒· ┐· K Γ· ┘· ─ Γ· X ─ ┘· K ¬ ┌· ┘· ┐ L ─ ¬ ⌒· └ L K K L ┌· ⌐· ┌· L └· X· L ─ r ⌒· | K r· L Γ· ─ Γ L ⌣ ┘· ⌐· r ┘· Γ· ─ r Γ· Γ L ─ r L Γ· X ⌐ X· X L ⌐· X· └ r └ X· L ┌ ┘· Γ L ┌· ─ L ─ r ┌· ⌒· ┐· K Γ· ┘· ─ Γ· X ─ ┘· K ¬ ┌· ┘· ┐ L ─ ¬ ⌒· └ L K K L ┌· ⌐· ┌· L └· X· L ─ r ⌒· | THE INDEX OF COINCIDENCE IS A USEFUL CLUE MODERN ENCRYPTION IS NOT BROKEN BY LETTER FREQUENCY | pigpen | pigpen | null | {} | medium | en | 32 | 32 | synthetic_educational | null | null | [
"symbol_frequency",
"grid_position_decode"
] | Pigpen cipher: letters encoded as positions in tic-tac-toe and X grids. |
diana-v2-0674 | HGWTRZMGMOHIPGQMGPQBAEGBPPVABDPPIJXRBLPNCTBUFAVYJFDZTQJAGQSABBKQGFRE | HGWTRZMGMOHIPGQMGPQBAEGBPPVABDPPIJXRBLPNCTBUFAVYJFDZTQJAGQSABBKQGFRE | COWARDS DIE MANY TIMES BEFORE THEIR DEATHS THE VALIANT NEVER TASTE DEATH BUT ONCE | diana | diana | polyalphabetic | {
"type": "keyword",
"value": "JUSTICE"
} | intermediate | en | 68 | 68 | cipher_museum | 2.0 | public | null | null |
cda-0022167 | WLFYOV GIZMHKLHRGRLM ZKKORVH XLOFNMZI VMXIBKGRLM GDRXV PVIXPSLUUH KIRMXRKOV HZBH GSV HBHGVN NFHG YV HVXFIV VEVM RU VMVNB PMLDH ZOTLIRGSN XLOFNMZI GIZMHKLHRGRLM IVZWH XLOFNMH RM PVB LIWVI | WLFYOV GIZMHKLHRGRLM ZKKORVH XLOFNMZI VMXIBKGRLM GDRXV PVIXPSLUUH KIRMXRKOV HZBH GSV HBHGVN NFHG YV HVXFIV VEVM RU VMVNB PMLDH ZOTLIRGSN XLOFNMZI GIZMHKLHRGRLM IVZWH XLOFNMH RM PVB LIWVI | DOUBLE TRANSPOSITION APPLIES COLUMNAR ENCRYPTION TWICE KERCKHOFFS PRINCIPLE SAYS THE SYSTEM MUST BE SECURE EVEN IF ENEMY KNOWS ALGORITHM COLUMNAR TRANSPOSITION READS COLUMNS IN KEY ORDER | atbash | atbash | null | {} | hard | en | 161 | 161 | synthetic_educational | null | null | [
"self_inverse_check",
"frequency_analysis"
] | Atbash maps A↔Z, B↔Y, … and is its own inverse. |
chaocipher-v2-0497 | NYTWKZZVWLPXWLGMUFAANIBEEBQSIXEYZMFWAFYEIZTJPZMBCSOSWVQZGWLKEMEJNIRPUUETXOOVBOWKWDMWWMDQTOOLFBHPXINUHOMMUVXIUZOWGYLVHVDCLRBMEFYFETNFKPKMDEKRJGPZYDZFEJPSXLJUXCZZSJWELPEZKCUOIYP | NYTWKZZVWLPXWLGMUFAANIBEEBQSIXEYZMFWAFYEIZTJPZMBCSOSWVQZGWLKEMEJNIRPUUETXOOVBOWKWDMWWMDQTOOLFBHPXINUHOMMUVXIUZOWGYLVHVDCLRBMEFYFETNFKPKMDEKRJGPZYDZFEJPSXLJUXCZZSJWELPEZKCUOIYP | 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 | chaocipher | chaocipher | machine | {
"type": "keyword",
"value": "JUSTICE"
} | advanced | en | 175 | 175 | cipher_museum | 2.0 | public | null | null |
cda-0009240 | GUSW ARSK BTQB WAQV RSAQ SNFO HFST HYQY HSRB ABGN BATH FSBP THFQ OGWB AJWG USAQ ELCG WBAQ WUEO CVNA RGEV UEOC UTES DHSA QVSF SKCB FSFW ZCYS QVCV REFS AGEB CLZR OFHE SFHA QREG OVAG LWAO QWFG EVPH GWBA | GUSW ARSK BTQB WAQV RSAQ SNFO HFST HYQY HSRB ABGN BATH FSBP THFQ OGWB AJWG USAQ ELCG WBAQ WUEO CVNA RGEV UEOC UTES DHSA QVSF SKCB FSFW ZCYS QVCV REFS AGEB CLZR OFHE SFHA QREG OVAG LWAO QWFG EVPH GWBA | THE INDEX OF COINCIDENCE IS A USEFUL CLUE DO NOT CONFUSE OBFUSCATION WITH ENCRYPTION DIGRAPH AND TRIGRAPH FREQUENCIES EXPOSE SIMPLE CIPHERS ENTROPY MEASURES UNCERTAINTY IN A DISTRIBUTION | porta | porta | null | {
"key": "PATTERN"
} | hard | en | 160 | 160 | synthetic_educational | null | null | [] | |
venona-pad-reuse-v3-0213 | X7QJA5LBCVQPBIWD | X7QJA5LBCVQPBIWD | SOUND THE TRUMPETS | venona_pad_reuse | venona_pad_reuse | stream | {
"type": "keyword",
"value": "FREEDOM"
} | expert | en | 16 | 16 | cipher_museum | 2.0 | public | null | null |
playfair-084 | CZRIQFUHYDPFBQPZ | CZRIQFUHYDPFBQPZ | EVACUATE THE BASE | playfair | playfair | polygraphic | {
"type": "keyword",
"value": "CIPHER"
} | intermediate | en | 16 | 16 | cipher_museum | 0.2 | public | null | null |
bifid-v2-0099 | LBTBLRQQSNNPMTPSNRFMTLQCEITMKQINALIQCIEGRISDUGCZKOGUMYKIQMYSDVXYESDRLWXLOC | LBTBLRQQSNNPMTPSNRFMTLQCEITMKQINALIQCIEGRISDUGCZKOGUMYKIQMYSDVXYESDRLWXLOC | LIBERTÉ ÉGALITÉ FRATERNITÉ OU LA MORT CES MOTS DÉFINISSENT LA REVOLUTION FRANÇAISE DE MIL SEPT | bifid | bifid | fractionation | {
"type": "keyword",
"value": "PALACE"
} | advanced | en | 74 | 74 | cipher_museum | 2.0 | public | null | null |
two-square-v3-0016 | LQEGLUSTMEHEWALLSX | LQEGLUSTMEHEWALLSX | ARCHERS TO THE WALLS | two_square | two_square | polygraphic | {
"key1": "PALACE",
"key2": "BATTLE"
} | advanced | en | 18 | 18 | cipher_museum | 2.0 | public | null | null |
columnar-transposition-v3-0412 | MKPAUNRTICAMIIDASHGIINLNTEEAANTYEHITHCILCIEDMTUPDSCCGMWCEMHOOVAACREOYMAOTLLDHMHTELTBUAIOMVEDANSWDYIABWTTLSENLSRPESUERTHTCTAHASEAUMEWTAAFRILOHOOOOXINAWTLERTELTIA | MKPAUNRTICAMIIDASHGIINLNTEEAANTYEHITHCILCIEDMTUPDSCCGMWCEMHOOVAACREOYMAOTLLDHMHTELTBUAIOMVEDANSWDYIABWTTLSENLSRPESUERTHTCTAHASEAUMEWTAAFRILOHOOOOXINAWTLERTELTIA | 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 | columnar_transposition | columnar_transposition | transposition | {
"type": "keyword",
"value": "WARRIOR"
} | intermediate | en | 160 | 160 | cipher_museum | 2.0 | public | null | null |
enigma-v2-0052 | LOFYEJRHMNEEKSYMUVNBYCHRYPSHJEAQYJPTEGUETCKFCAJTNXXCVRJBEEBPJYFWVNUYQQAQ | LOFYEJRHMNEEKSYMUVNBYCHRYPSHJEAQYJPTEGUETCKFCAJTNXXCVRJBEEBPJYFWVNUYQQAQ | GENERAL GRANT HAS TAKEN VICKSBURG THE GREAT RIVER IS NOW OPEN FROM ITS SOURCE TO THE SEA | enigma | enigma | machine | {
"type": "rotor_start",
"value": "ABC"
} | expert | en | 72 | 72 | cipher_museum | 2.0 | public | null | null |
cardano-autokey-v3-0159 | XUKMRPGAEBAVINKVPTOOWBVADLMQENQUVPTOOWBJEBAVINLUKMRPGMATMTVQVSILDLMFVKXMVFLXMV | XUKMRPGAEBAVINKVPTOOWBVADLMQENQUVPTOOWBJEBAVINLUKMRPGMATMTVQVSILDLMFVKXMVFLXMV | SCIENCE WITHOUT RELIGION IS LAME AND RELIGION WITHOUT SCIENCE IS BLIND SAID ALBERT EINSTEIN | cardano_autokey | cardano_autokey | polyalphabetic | {
"type": "keyword",
"value": "FLORENCE"
} | advanced | en | 78 | 78 | cipher_museum | 2.0 | public | null | null |
adfgvx-v2-0484 | AFAADVFVAFAVDXFAAVFGDFGXFAAAAFFXGXAADVGXDVDXAAGAVAFAFDGDXGFDDDAGFAADAFADGGAFAFAVDFAAAXDVGDDXDFDXDXFGDDGFDDGFAFAFFDFAFAFGFDFFXDAFFADGGADAVADDDADFDADGDAAFFVFDDFVDVD | AFAADVFVAFAVDXFAAVFGDFGXFAAAAFFXGXAADVGXDVDXAAGAVAFAFDGDXGFDDDAGFAADAFADGGAFAFAVDFAAAXDVGDDXDFDXDXFGDDGFDDGFAFAFFDFAFAFGFDFFXDAFFADGGADAVADDDADFDADGDAAFFVFDDFVDVD | GENERAL ORDERS NUMBER ONE ALL COMMUNICATIONS SHALL BE ENCRYPTED USING THE APPROVED CIPHER DISK | adfgvx | adfgvx | fractionation | {
"polybius": "DRAGON",
"columnar": "THUNDER"
} | advanced | en | 162 | 162 | cipher_museum | 2.0 | public | null | null |
m209-v2-0330 | SCIESLQTLNTRORIVKVOPOYYMVZCPEMNEGDVJUPYLVVSDRJPAPSRBQBBMWQKZBQSCBOZRBPHDJZDHT | SCIESLQTLNTRORIVKVOPOYYMVZCPEMNEGDVJUPYLVVSDRJPAPSRBQBBMWQKZBQSCBOZRBPHDJZDHT | NAVAL UNITS IN POSITION OFF THE COAST AWAITING SIGNAL TO COMMENCE SHORE BOMBARDMENT AT DAWN | m209 | m209 | machine | {
"type": "seed",
"value": "LIBERTY"
} | expert | en | 77 | 77 | cipher_museum | 2.0 | public | null | null |
m94-v2-0283 | PLXTZGOUEWACLTCTWNZDMIYKCSOKBGIGYFQLISUJMECQYAAOVJYUSWGQEESJYTQ | PLXTZGOUEWACLTCTWNZDMIYKCSOKBGIGYFQLISUJMECQYAAOVJYUSWGQEESJYTQ | IT WAS THE BEST OF TIMES IT WAS AN AGE OF WISDOM AND AN AGE OF UTTER FOOLISHNESS | m94 | m94 | machine | {
"type": "seed",
"value": "LIBERTY"
} | expert | en | 63 | 63 | cipher_museum | 2.0 | public | null | null |
m94-v2-0235 | DREZSQEKFVXEMRFTGJ | DREZSQEKFVXEMRFTGJ | LOOSE LIPS SINK SHIPS | m94 | m94 | machine | {
"type": "seed",
"value": "LIBERTY"
} | expert | en | 18 | 18 | cipher_museum | 2.0 | public | null | null |
cda-0015916 | .- -. / .- ..-. ..-. .. -. . / -.-. .. .--. .... . .-. / .- .--. .--. .-.. .. . ... / .- / .-.. .. -. . .- .-. / ..-. ..- -. -.-. - .. --- -. / - --- / . .- -.-. .... / .-.. . - - . .-. / -.-. .-. -.-- .--. - --- --. .-. .- .--. .... -.-- / .-. . .-- .- .-. -.. ... / .--. .- - .. . -. -.-. . / .- -. -.. / -.-. .- .-. .... | .- -. / .- ..-. ..-. .. -. . / -.-. .. .--. .... . .-. / .- .--. .--. .-.. .. . ... / .- / .-.. .. -. . .- .-. / ..-. ..- -. -.-. - .. --- -. / - --- / . .- -.-. .... / .-.. . - - . .-. / -.-. .-. -.-- .--. - --- --. .-. .- .--. .... -.-- / .-. . .-- .- .-. -.. ... / .--. .- - .. . -. -.-. . / .- -. -.. / -.-. .- .-. .... | AN AFFINE CIPHER APPLIES A LINEAR FUNCTION TO EACH LETTER CRYPTOGRAPHY REWARDS PATIENCE AND CAREFUL THINKING THE KASISKI EXAMINATION FINDS REPEATED TRIGRAMS IN CIPHERTEXT THE MESSAGE WAS HIDDEN BUT NOT SECURE | morse_code | morse_code | null | {} | hard | en | 178 | 178 | synthetic_educational | null | null | [
"symbol_decode",
"frequency_analysis"
] | Morse code: dots and dashes; word-separated by / symbol. |
cardano-autokey-v3-0344 | OALWZVHALERUUFIHQWALAKFCO | OALWZVHALERUUFIHQWALAKFCO | THE SHOT HEARD ROUND THE WORLD | cardano_autokey | cardano_autokey | polyalphabetic | {
"type": "keyword",
"value": "VENICE"
} | advanced | en | 25 | 25 | cipher_museum | 2.0 | public | null | null |
typex-v2-0053 | VOQOACBYUQESFZCNYPQKDTCHPRWEXMXTYKCQWKNMAFZOVGGUOBKISZQMNWXRFOTNHJOKKDTZMAT | VOQOACBYUQESFZCNYPQKDTCHPRWEXMXTYKCQWKNMAFZOVGGUOBKISZQMNWXRFOTNHJOKKDTZMAT | ENEMY FORCES REPORTED MOVING TOWARD GETTYSBURG CAVALRY HAS CONFIRMED THE FULL SIGHTING | typex | typex | machine | {
"type": "keyword",
"value": "LONDON"
} | expert | en | 75 | 75 | cipher_museum | 2.0 | public | null | null |
lorenz-220 | IHAVENOTYETBEGUMTOFIGHRSAIDTHECAPTAINTOTHEGREW | IHAVENOTYETBEGUMTOFIGHRSAIDTHECAPTAINTOTHEGREW | I HAVE NOT YET BEGUN TO FIGHT SAID THE CAPTAIN TO THE CREW | lorenz | lorenz | machine | {
"type": "seed",
"value": "MUSEUM"
} | expert | en | 46 | 46 | cipher_museum | 0.2 | public | null | null |
cda-0013194 | GAH / A-KHA / NO-DA-IH / THAN-ZIE / DZEH / MOASI / TKIN / CLA-GI-AIH / LIN / DZEH / GAH / DIBEH / GAH / DZEH / WOL-LA-CHEE / BE / WOL-LA-CHEE / AH-JAH / GAH / TKIN / BE / TKIN / TSAH / WOL-LA-CHEE / CLA-GI-AIH / GAH / ... | GAH / A-KHA / NO-DA-IH / THAN-ZIE / DZEH / MOASI / TKIN / CLA-GI-AIH / LIN / DZEH / GAH / DIBEH / GAH / DZEH / WOL-LA-CHEE / BE / WOL-LA-CHEE / AH-JAH / GAH / TKIN / BE / TKIN / TSAH / WOL-LA-CHEE / CLA-GI-AIH / GAH / ... | ROUTE CIPHERS READ A GRID IN A PRESCRIBED GEOMETRIC PATTERN | navajo_code | navajo_code | null | {} | hard | en | 190 | 190 | synthetic_educational | null | null | [
"codebook_frequency",
"word_list_attack"
] | Navajo Code Talker cipher: Navajo words represent English letters. |
cda-0005922 | MMIVL TMTTS HLTYR LWXXJ BZTAP GIADP QWTIW XBZPA TXTVA BSXXP LSUEK CECHM XJYPT UOMXI HBVWO FULUW RFZSH NLANL UWTZS QRWVR DPUWC POLXN QBSXX QPVPW ITAMH PQALG SAEHL ATAQV AMHZN GCBVK BJPRD PUWCZ TAJHX FBADE FCIPN PVSDK JIDZL NXI | MMIVL TMTTS HLTYR LWXXJ BZTAP GIADP QWTIW XBZPA TXTVA BSXXP LSUEK CECHM XJYPT UOMXI HBVWO FULUW RFZSH NLANL UWTZS QRWVR DPUWC POLXN QBSXX QPVPW ITAMH PQALG SAEHL ATAQV AMHZN GCBVK BJPRD PUWCZ TAJHX FBADE FCIPN PVSDK JIDZL NXI | POLYALPHABETIC CIPHERS USE MULTIPLE ALPHABET SHIFTS THE LIBRARY PRESERVES KNOWLEDGE FOR THE COMMUNITY THE AUTOKEY CIPHER EXTENDS THE KEY WITH THE PLAINTEXT ITSELF THE FOUR SQUARE CIPHER USES TWO KEYWORD POLYBIUS SQUARES | beaufort | beaufort | null | {
"key": "BATTLE"
} | hard | en | 188 | 188 | synthetic_educational | null | null | [
"kasiski_examination",
"friedman_test",
"index_of_coincidence"
] | Beaufort: E(x)=k-x mod 26 — reciprocal cipher (decryption identical to encryption). |
cda-0013565 | MOIK RUPA DMGQ UDMF HHCZ QRIX HEZW JWEA EUWV ZZYE MJKU KBTJ XLKI PAHB PWDI DLQU AOKG PPYH VRWC ENTG ZBAI CEJY ETLH VJRZ EZSE QLCG RLAT KPVM AIRR NHVM YTBH XFJV YYPQ UGWE IQLB UVPB JDRU MOIB FOIM FEEA CEIA URYI RRCY MZKA XWRJ EDHE JNYI SCGA BXVH KYHY WUQS OLET BMNC LCGR | MOIK RUPA DMGQ UDMF HHCZ QRIX HEZW JWEA EUWV ZZYE MJKU KBTJ XLKI PAHB PWDI DLQU AOKG PPYH VRWC ENTG ZBAI CEJY ETLH VJRZ EZSE QLCG RLAT KPVM AIRR NHVM YTBH XFJV YYPQ UGWE IQLB UVPB JDRU MOIB FOIM FEEA CEIA URYI RRCY MZKA XWRJ EDHE JNYI SCGA BXVH KYHY WUQS OLET BMNC LCGR | THE KASISKI EXAMINATION FINDS REPEATED TRIGRAMS IN CIPHERTEXT THE TRITHEMIUS CIPHER ADVANCES THE ALPHABET BY ONE POSITION EACH LETTER ALAN TURING BROKE ENIGMA WITH CRIBS AND THE BOMBE MACHINE INDEX OF COINCIDENCE MEASURES LETTER FREQUENCY DISTRIBUTION | running_key | running_key | null | {} | hard | en | 216 | 216 | synthetic_educational | null | null | [
"index_of_coincidence",
"probable_plaintext"
] | Running-key cipher: Vigenère with a very long key (e.g. a book passage). |
cda-0006801 | QBABG PBASH FRBOS HFPNG VBAJV GURAP ELCGV BAGJB FDHNE RPVCU RERAP ELCGF QVTEN CUFJV GUGJB CBYLO VHFNY CUNOR GFGUR BARGV ZRCNQ VFGUR BERGV PNYYL HAOER NXNOY RVSHF RQPBE ERPGY L | QBABG PBASH FRBOS HFPNG VBAJV GURAP ELCGV BAGJB FDHNE RPVCU RERAP ELCGF QVTEN CUFJV GUGJB CBYLO VHFNY CUNOR GFGUR BARGV ZRCNQ VFGUR BERGV PNYYL HAOER NXNOY RVSHF RQPBE ERPGY L | DO NOT CONFUSE OBFUSCATION WITH ENCRYPTION TWO SQUARE CIPHER ENCRYPTS DIGRAPHS WITH TWO POLYBIUS ALPHABETS THE ONE TIME PAD IS THEORETICALLY UNBREAKABLE IF USED CORRECTLY | rot13 | rot13 | null | {
"shift": 13
} | hard | en | 146 | 146 | synthetic_educational | null | null | [
"brute_force_26",
"self_inverse_check"
] | ROT-13 is Caesar with shift 13 — it is its own inverse. |
m209-v3-0359 | UKVIBLNLKXKQVIBOMDURGBZUQOHRZAXABIXFNDKVSZSYRDOVQPPKMYLMURRPYDZQMJKPCRLKICZVRJCOJNZFIWAA | UKVIBLNLKXKQVIBOMDURGBZUQOHRZAXABIXFNDKVSZSYRDOVQPPKMYLMURRPYDZQMJKPCRLKICZVRJCOJNZFIWAA | IT IS A TRUTH UNIVERSALLY ACKNOWLEDGED THAT A SINGLE MAN IN POSSESSION OF A FORTUNE MUST BE IN WANT OF A WIFE | m209 | m209 | machine | {
"type": "seed",
"value": "VICTORY"
} | expert | en | 88 | 88 | cipher_museum | 2.0 | public | null | null |
cda-0005641 | CHAC NSHE LTST FERY TAKT OMSI MTER YRIR ILWE SOAE RXPE EENE WTUN PREX TWNF GSHH BCET NXOA CUTS EOSI AOTX GREL HORD TPCA LXRD ATEN EFIH HDEX ASNH BSTA TELI TXPP DIES HIUR EFTX | CHAC NSHE LTST FERY TAKT OMSI MTER YRIR ILWE SOAE RXPE EENE WTUN PREX TWNF GSHH BCET NXOA CUTS EOSI AOTX GREL HORD TPCA LXRD ATEN EFIH HDEX ASNH BSTA TELI TXPP DIES HIUR EFTX | CRYPTOGRAPHY REWARDS PATIENCE AND CAREFUL THINKING THE BEST LESSONS SHOW WHERE THE METHOD FAILS SUBSTITUTION CIPHERS MAP EACH LETTER TO A DIFFERENT LETTER | scytale | scytale | null | {
"cols": 10
} | hard | en | 140 | 140 | synthetic_educational | null | null | [
"column_count_search",
"anagram_recovery"
] | Scytale: Spartan cylinder cipher — wrap text around a rod of fixed diameter. |
pigpen-v2-0012 | ├• ┐ ╲ ╲ ┐ ┤• ┼• ⌐ ¬ ¬ ┤• ├• ┌• ¬• ┐ ╲ ┬ ┼ ├ | ├• ┐ ╲ ╲ ┐ ┤• ┼• ⌐ ¬ ¬ ┤• ├• ┌• ¬• ┐ ╲ ┬ ┼ ├ | MISSION ACCOMPLISHED | pigpen | pigpen | substitution | {
"type": "none",
"value": null
} | beginner | en | 26 | 44 | cipher_museum | 2.0 | public | null | null |
m209-079 | PRRNUKQPYKNLCUZN | PRRNUKQPYKNLCUZN | NO PRISONERS TAKEN | m209 | m209 | machine | {
"type": "seed",
"value": "CIPHER"
} | expert | en | 16 | 16 | cipher_museum | 0.2 | public | null | null |
null-cipher-v2-0012 | many it sound sentence in over new about came call on more part look into some her each down | many it sound sentence in over new about came call on more part look into some her each down | MISSION ACCOMPLISHED | null_cipher | null_cipher | steganography | {
"type": "position",
"value": "first"
} | advanced | en | 74 | 92 | cipher_museum | 2.0 | public | null | null |
double-transposition-v2-0626 | OTAIAEENOLSNTGLWAFYEBEDOANNDSTTERISOHSAREGOEAYISWFRMNDNELRIWTSHNETNERHNEESSEUTOGWHPERAOVUEKLAVNIOBLERHLHILOLAINATUETALIOUBYAFGOASDRYOTMECEALBSYMNYRNINI | OTAIAEENOLSNTGLWAFYEBEDOANNDSTTERISOHSAREGOEAYISWFRMNDNELRIWTSHNETNERHNEESSEUTOGWHPERAOVUEKLAVNIOBLERHLHILOLAINATUETALIOUBYAFGOASDRYOTMECEALBSYMNYRNINI | TIMES ARE BAD CHILDREN NO LONGER OBEY THEIR PARENTS AND EVERYONE IS WRITING A BOOK IT SEEMS TO ME THAT THE YOUNG HAVE ALWAYS AND WILL ALWAYS BE AN UNRULY GENERATION FULL OF FOOLISHNESS | double_transposition | double_transposition | transposition | {
"key1": "WISDOM",
"key2": "COURAGE"
} | advanced | en | 151 | 151 | cipher_museum | 2.0 | public | null | null |
cardano-autokey-v3-0198 | BDLRRZZVRNLDTFDATLUJZVEZQRGUFGQAQWVHWLKLWVBDZSTYALWWIRQVABBALALVZONAHTYALTTSDAPXHOLEXVFFKHOBPZTAZPBTNQWHWVFLBBNNXRRACUJZVEZQRGELYGVTOBLXTIHQDTBWBBBFMWJWGZVPKXAPW | BDLRRZZVRNLDTFDATLUJZVEZQRGUFGQAQWVHWLKLWVBDZSTYALWWIRQVABBALALVZONAHTYALTTSDAPXHOLEXVFFKHOBPZTAZPBTNQWHWVFLBBNNXRRACUJZVEZQRGELYGVTOBLXTIHQDTBWBBBFMWJWGZVPKXAPW | WHENEVER ANY FORM OF GOVERNMENT BECOMES DESTRUCTIVE OF THESE ENDS IT IS THE RIGHT OF THE PEOPLE TO ALTER OR TO ABOLISH IT AND TO INSTITUTE NEW GOVERNMENT LAYING ITS FOUNDATION ON SUCH PRINCIPLES | cardano_autokey | cardano_autokey | polyalphabetic | {
"type": "keyword",
"value": "FLORENCE"
} | advanced | en | 161 | 161 | cipher_museum | 2.0 | public | null | null |
straddling-checkerboard-v3-0223 | 4252238222422202224863 | 4252238222422202224863 | THE SIEGE BEGINS | straddling_checkerboard | straddling_checkerboard | substitution | {
"type": "top_row",
"value": "RASTONICEL"
} | advanced | en | 22 | 22 | cipher_museum | 2.0 | public | null | null |
m209-v3-0361 | UKHAJEDOVYXKBPUCBDHURBMNVRDPAKWACQQDWLGZOBLJMVRVQYKVWLKAYSEBMPMMKVAAYKH | UKHAJEDOVYXKBPUCBDHURBMNVRDPAKWACQQDWLGZOBLJMVRVQYKVWLKAYSEBMPMMKVAAYKH | IT WAS A BRIGHT COLD DAY IN APRIL AND THE CLOCKS WERE STRIKING THIRTEEN ACROSS THE CITY | m209 | m209 | machine | {
"type": "seed",
"value": "VICTORY"
} | expert | en | 71 | 71 | cipher_museum | 2.0 | public | null | null |
cda-0019555 | 5 14 20 18 15 16 25 13 5 1 19 21 18 5 19 21 14 3 5 18 20 1 9 14 20 25 9 14 1 4 9 19 20 18 9 2 21 20 9 15 14 20 15 13 15 18 18 15 23 | 5 14 20 18 15 16 25 13 5 1 19 21 18 5 19 21 14 3 5 18 20 1 9 14 20 25 9 14 1 4 9 19 20 18 9 2 21 20 9 15 14 20 15 13 15 18 18 15 23 | ENTROPY MEASURES UNCERTAINTY IN A DISTRIBUTION TOMORROW | aeneas_tacticus | aeneas_tacticus | null | {} | medium | en | 49 | 49 | synthetic_educational | null | null | [
"sequential_number_decode",
"frequency_analysis"
] | Aeneas Tacticus: Greek sequential-number cipher; A=1…Z=26. |
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