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-0022055 | GSVY VHGO VHHL MHHS LDDS VIVG SVNV GSLW UZRO HTLL WVWF XZGR LMZO GLLO HVCK OZRM GSVR IORN RGHP VIXP SLUU HKIR MXRK OVHZ BHGS VHBH GVNN FHGY VHVX FIVV EVMR UVMV NBPM LDHZ OTLI RGSN | GSVY VHGO VHHL MHHS LDDS VIVG SVNV GSLW UZRO HTLL WVWF XZGR LMZO GLLO HVCK OZRM GSVR IORN RGHP VIXP SLUU HKIR MXRK OVHZ BHGS VHBH GVNN FHGY VHVX FIVV EVMR UVMV NBPM LDHZ OTLI RGSN | THE BEST LESSONS SHOW WHERE THE METHOD FAILS GOOD EDUCATIONAL TOOLS EXPLAIN THEIR LIMITS KERCKHOFFS PRINCIPLE SAYS THE SYSTEM MUST BE SECURE EVEN IF ENEMY KNOWS ALGORITHM | atbash | atbash | null | {} | hard | en | 144 | 144 | synthetic_educational | null | null | [
"self_inverse_check",
"frequency_analysis"
] | Atbash maps A↔Z, B↔Y, … and is its own inverse. |
lorenz-155 | GIVEMELIBERTYORGIVEMEDEATHSAIDPATRICKHENTY | GIVEMELIBERTYORGIVEMEDEATHSAIDPATRICKHENTY | GIVE ME LIBERTY OR GIVE ME DEATH SAID PATRICK HENRY | lorenz | lorenz | machine | {
"type": "seed",
"value": "SECRET"
} | expert | en | 42 | 42 | cipher_museum | 0.2 | public | null | null |
red-type-a-112 | YRQRIMEMIBBUSZZOCRSOQUJGYRWDFUMYCHLOKFYFXZULYXNCORNYNNNOLO | YRQRIMEMIBBUSZZOCRSOQUJGYRWDFUMYCHLOKFYFXZULYXNCORNYNNNOLO | IN THE BEGINNING WAS THE WORD AND THE WORD WAS WITH GOD AND FULL OF GRACE | red_type_a | red_type_a | machine | {
"type": "keyword",
"value": "CIPHER"
} | advanced | en | 58 | 58 | cipher_museum | 0.2 | public | null | null |
kl7-v2-0323 | VBEXNWOANYVDCLMQNXAPOZVAIVTRISBXWXYDSCGYGGGAQSYREYRHCZIMNWXUHXX | VBEXNWOANYVDCLMQNXAPOZVAIVTRISBXWXYDSCGYGGGAQSYREYRHCZIMNWXUHXX | IT WAS THE BEST OF TIMES IT WAS AN AGE OF WISDOM AND AN AGE OF UTTER FOOLISHNESS | kl7 | kl7 | machine | {
"type": "seed",
"value": "FREEDOM"
} | expert | en | 63 | 63 | cipher_museum | 2.0 | public | null | null |
monoalphabetic-v3-0834 | LPKQQ SDR PTAELKJ JKW | LPKQQ SDR PTAELKJ JKW | CROSS THE RUBICON NOW | monoalphabetic | monoalphabetic | substitution | {
"type": "keyword",
"value": "VALOR"
} | beginner | en | 18 | 21 | cipher_museum | 2.0 | public | null | null |
cda-0012906 | 06349 02527 1665 4809 04471 1642 06320 02881 04169 01614 5034 0330 01341 2899 5999 06369 02611 01630 04754 5663 01607 06316 02899 00942 00412 03855 03821 07909 06655 04477 00669 5697 1584 0374 03544 0397 0707 03812 01660 2859 01942 06669 06020 1665 1351 00977 4781 05748 05712 1668 00999 06362 3811 7907 00365 4112 04800... | 06349 02527 1665 4809 04471 1642 06320 02881 04169 01614 5034 0330 01341 2899 5999 06369 02611 01630 04754 5663 01607 06316 02899 00942 00412 03855 03821 07909 06655 04477 00669 5697 1584 0374 03544 0397 0707 03812 01660 2859 01942 06669 06020 1665 1351 00977 4781 05748 05712 1668 00999 06362 3811 7907 00365 4112 04800... | THE ONE TIME PAD IS THEORETICALLY UNBREAKABLE IF USED CORRECTLY A MODEL CAN CLASSIFY PATTERNS BUT IT CAN ALSO BE WRONG THE MESSAGE WAS HIDDEN BUT NOT SECURE SECURITY CLAIMS SHOULD BE TESTED UNDER SCRUTINY | zimmermann | zimmermann | null | {} | hard | en | 170 | 170 | synthetic_educational | null | null | [
"codebook_frequency",
"number_group_analysis"
] | Zimmermann Telegram code: WWI German diplomatic numeric codebook cipher. |
cda-0012582 | ⟨a25⟩ ⟨a29⟩ ⟨w20⟩ ⟨a01⟩ ⟨w32⟩ ⟨a11⟩ ⟨a19⟩ ⟨w08⟩ ⟨a19⟩ ⟨w40⟩ ⟨a13⟩ ⟨a19⟩ ⟨w20⟩ ⟨w22⟩ ⟨w20⟩ ⟨a19⟩ ⟨a31⟩ ⟨w20⟩ ⟨w22⟩ ⟨w38⟩ ⟨a07⟩ ⟨w10⟩ ⟨w34⟩ ⟨a01⟩ ⟨w20⟩ ⟨a17⟩ ⟨w26⟩ ⟨w20⟩ ⟨a23⟩ ⟨w10⟩ ⟨a19⟩ ⟨a25⟩ ⟨a29⟩ ⟨w20⟩ ⟨w14⟩ ⟨w10⟩ ⟨w04⟩ ⟨w04⟩ ⟨w28⟩ ⟨a07⟩ ⟨w32⟩ ⟨a25⟩ ⟨w40⟩ | ⟨a25⟩ ⟨a29⟩ ⟨w20⟩ ⟨a01⟩ ⟨w32⟩ ⟨a11⟩ ⟨a19⟩ ⟨w08⟩ ⟨a19⟩ ⟨w40⟩ ⟨a13⟩ ⟨a19⟩ ⟨w20⟩ ⟨w22⟩ ⟨w20⟩ ⟨a19⟩ ⟨a31⟩ ⟨w20⟩ ⟨w22⟩ ⟨w38⟩ ⟨a07⟩ ⟨w10⟩ ⟨w34⟩ ⟨a01⟩ ⟨w20⟩ ⟨a17⟩ ⟨w26⟩ ⟨w20⟩ ⟨a23⟩ ⟨w10⟩ ⟨a19⟩ ⟨a25⟩ ⟨a29⟩ ⟨w20⟩ ⟨w14⟩ ⟨w10⟩ ⟨w04⟩ ⟨w04⟩ ⟨w28⟩ ⟨a07⟩ ⟨w32⟩ ⟨a25⟩ ⟨w40⟩ | THE LIBRARY PRESERVES KNOWLEDGE FOR THE COMMUNITY | babington | babington | null | {} | medium | en | 43 | 43 | synthetic_educational | null | null | [
"nomenclator_frequency",
"symbol_mapping"
] | Babington nomenclator: symbol tokens ⟨wNN⟩/⟨aNN⟩ used in the 1586 Babington Plot. |
solitaire-029 | DIICUGTFWBCSXHLA | DIICUGTFWBCSXHLA | LOCK DOWN ALL GATES | solitaire | solitaire | stream | {
"type": "none",
"value": null
} | expert | en | 16 | 16 | cipher_museum | 0.2 | public | null | null |
cda-0007798 | FSQHEVGL QYOVZF FVBHYQ PN GSFGRQ HARSE FNEHGWAL UHZOA EROROPYN BHGCHG FUBHNR FUBJ ONY ENOFBAWAT FGNCF | FSQHEVGL QYOVZF FVBHYQ PN GSFGRQ HARSE FNEHGWAL UHZOA EROROPYN BHGCHG FUBHNR FUBJ ONY ENOFBAWAT FGNCF | SECURITY CLAIMS SHOULD BE TESTED UNDER SCRUTINY HUMAN READABLE OUTPUT SHOULD SHOW ALL REASONING STEPS | porta | porta | null | {
"key": "JUSTICE"
} | hard | en | 87 | 87 | synthetic_educational | null | null | [] | |
kryptos-v2-0182 | SAFMHTAUTAQUQAFBZXVIJYBZOXGSXATUFICWNXHCVISPTOYYLZMQLNJPTVIXCVFYHWR | SAFMHTAUTAQUQAFBZXVIJYBZOXGSXATUFICWNXHCVISPTOYYLZMQLNJPTVIXCVFYHWR | I KNOW NOT WHAT COURSE OTHERS MAY TAKE BUT AS FOR ME GIVE ME LIBERTY OR GIVE ME DEATH | kryptos | kryptos | polyalphabetic | {
"type": "keyword",
"value": "LANGLEY"
} | advanced | en | 67 | 67 | cipher_museum | 2.0 | public | null | null |
polybius-033 | 44 23 15 34 33 31 54 44 23 24 33 22 52 15 23 11 51 15 44 34 21 15 11 42 24 43 21 15 11 42 24 44 43 15 31 21 | 44 23 15 34 33 31 54 44 23 24 33 22 52 15 23 11 51 15 44 34 21 15 11 42 24 43 21 15 11 42 24 44 43 15 31 21 | THE ONLY THING WE HAVE TO FEAR IS FEAR ITSELF | polybius | polybius | substitution | {
"type": "none",
"value": null
} | beginner | en | 72 | 107 | cipher_museum | 0.2 | public | null | null |
cda-0020168 | ⌐ K ¬ ⌐ X r· L ─ r ┘· Γ L X ¬ ⌒· ┌· L K· L ┌· X Γ· ─ ¬· K r· L ⌐ └ ┐· r· ⌐ ¬ L K ┌· ┘· X· K L r Γ· ┐· r· L ┌· X ┌· L ⌐ Γ ⌐ ¬· ┌· Γ· Γ Γ· ─ ⌐ ┐· ┌· L X r ┌· Γ· ¬ L Γ ¬· L ┘· ┌ L K ┌· Γ· r ┐· ⌐ K K L ┌· ─ K r· L ⌐· ┘· X· ┌· X └· X· ⌐ ┌· L r Γ· ┐· r· L ┌· X· X L X K ⌒ ┘· ┐ L ⌒· ⌒ ┘· ┌· Γ ┐· ┘· └ ⌒· ¬ Γ· X· X X └· X· ⌐ ┌· ... | ⌐ K ¬ ⌐ X r· L ─ r ┘· Γ L X ¬ ⌒· ┌· L K· L ┌· X Γ· ─ ¬· K r· L ⌐ └ ┐· r· ⌐ ¬ L K ┌· ┘· X· K L r Γ· ┐· r· L ┌· X ┌· L ⌐ Γ ⌐ ¬· ┌· Γ· Γ Γ· ─ ⌐ ┐· ┌· L X r ┌· Γ· ¬ L Γ ¬· L ┘· ┌ L K ┌· Γ· r ┐· ⌐ K K L ┌· ─ K r· L ⌐· ┘· X· ┌· X └· X· ⌐ ┌· L r Γ· ┐· r· L ┌· X· X L X K ⌒ ┘· ┐ L ⌒· ⌒ ┘· ┌· Γ ┐· ┘· └ ⌒· ¬ Γ· X· X X └· X· ⌐ ┌· ... | ATBASH ENCODES BY REVERSING THE ALPHABET ROUTE CIPHERS READ A GRID IN A PRESCRIBED GEOMETRIC PATTERN THE FOUR SQUARE CIPHER USES TWO KEYWORD POLYBIUS SQUARES FAIL CLOSED IS A POSTURE NOT A SLOGAN | pigpen | pigpen | null | {} | medium | en | 68 | 68 | synthetic_educational | null | null | [
"symbol_frequency",
"grid_position_decode"
] | Pigpen cipher: letters encoded as positions in tic-tac-toe and X grids. |
cda-0014835 | 809 842 862 803 835 812 999 857 853 801 840 855 845 842 856 825 857 824 843 840 999 800 847 847 835 826 813 856 999 807 842 834 862 837 841 801 851 999 812 840 806 852 873 845 857 826 844 841 999 859 868 826 806 814 999 | 809 842 862 803 835 812 999 857 853 801 840 855 845 842 856 825 857 824 843 840 999 800 847 847 835 826 813 856 999 807 842 834 862 837 841 801 851 999 812 840 806 852 873 845 857 826 844 841 999 859 868 826 806 814 999 | DOUBLE TRANSPOSITION APPLIES COLUMNAR ENCRYPTION TWICE | culper_ring | culper_ring | null | {} | medium | en | 49 | 49 | synthetic_educational | null | null | [
"codebook_frequency",
"number_range_analysis"
] | Culper Ring code: Washington's three-digit codebook numbers (800–999 range). |
vigenere-v2-0876 | IOSJHVAPTSRGIIEYCFYMJDMQSZURCPQEGQLCPGXUIQDMFICZLSBQMAOXIVBICWFCASMGPBGLLEPBINVFECXODEWQNBBAFOQRAPPNSWRTBRASHNBXCVHLRZMDPBXSZBFBSRGTVIOSQRAPPNSWUISTTSEAQKVHBHEMCTYHSCPVHPQEYKLCJSTGA | IOSJHVAPTSRGIIEYCFYMJDMQSZURCPQEGQLCPGXUIQDMFICZLSBQMAOXIVBICWFCASMGPBGLLEPBINVFECXODEWQNBBAFOQRAPPNSWRTBRASHNBXCVHLRZMDPBXSZBFBSRGTVIOSQRAPPNSWUISTTSEAQKVHBHEMCTYHSCPVHPQEYKLCJSTGA | THE FUNDAMENTAL PROBLEM OF COMMUNICATION IS THAT OF REPRODUCING AT ONE POINT EITHER EXACTLY OR APPROXIMATELY A MESSAGE SELECTED AT ANOTHER POINT FREQUENTLY THE MESSAGES HAVE MEANING AND REFER TO PHYSICAL CONCEPTS | vigenere | vigenere | polyalphabetic | {
"type": "keyword",
"value": "PHOENIX"
} | intermediate | en | 181 | 181 | cipher_museum | 2.0 | public | null | null |
cda-0003597 | PDPR IRBE ROON SIEE SOEA SVYR RRNN TYPA NOLD IFEP OFOA AASH RCFY LRRM TKRR NRLT EARL BESO OIEE CDET ERLY EITO MDON QODF OMUG PTUT FOEN BURE USSS ETTS ENNR IYER TNEH EBBE ERUE NSLN EEDC ISRL RNSM TENE CCCA ULLA OSCA BONO TYTT MRLI TCXO SEFC TTEI IEEC NOKX | PDPR IRBE ROON SIEE SOEA SVYR RRNN TYPA NOLD IFEP OFOA AASH RCFY LRRM TKRR NRLT EARL BESO OIEE CDET ERLY EITO MDON QODF OMUG PTUT FOEN BURE USSS ETTS ENNR IYER TNEH EBBE ERUE NSLN EEDC ISRL RNSM TENE CCCA ULLA OSCA BONO TYTT MRLI TCXO SEFC TTEI IEEC NOKX | POLYBIUS ENCODED LETTERS AS PAIRS OF NUMBERS FROM ONE TO FIVE MODERN ENCRYPTION IS NOT BROKEN BY LETTER FREQUENCY ERROR CORRECTION AND DETECTION ARE FUNDAMENTAL TO SECURE SYSTEMS HILL CIPHER USES LINEAR ALGEBRA TO ENCRYPT BLOCKS OF LETTERS | scytale | scytale | null | {
"cols": 12
} | hard | en | 204 | 204 | synthetic_educational | null | null | [
"column_count_search",
"anagram_recovery"
] | Scytale: Spartan cylinder cipher — wrap text around a rod of fixed diameter. |
cda-0020529 | THETZ ITHEM IUSCI PHERX DVANC ESTHZ ALPHX BETBY ONEPO SITIZ NEACH LETTZ RXBCX | THETZ ITHEM IUSCI PHERX DVANC ESTHZ ALPHX BETBY ONEPO SITIZ NEACH LETTZ RXBCX | THE TRITHEMIUS CIPHER ADVANCES THE ALPHABET BY ONE POSITION EACH LETTER | commercial_code | commercial_code | null | {} | medium | en | 65 | 65 | 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-v2-0021 | ZAKDARBUIDJ | ZAKDARBUIDJ | KNOW THYSELF | chaocipher | chaocipher | machine | {
"type": "keyword",
"value": "PALACE"
} | advanced | en | 11 | 11 | cipher_museum | 2.0 | public | null | null |
playfair-v3-0085 | ZDCOKOUGPEUZSTHUGBSOCKPZCOUTNQHPENOLTMPELURLTWHMUKOCAPIECPUNBKXLUMPXCUOHEIPMQNELPFCKFRZDNPFZDEZPENMYOCGYAHUGLOVKUGCKNUOHSUOHXTOUSEFWHAECDWCUOHELQTLUZDNPBOILPCUGLUPADWCRKIMY | ZDCOKOUGPEUZSTHUGBSOCKPZCOUTNQHPENOLTMPELURLTWHMUKOCAPIECPUNBKXLUMPXCUOHEIPMQNELPFCKFRZDNPFZDEZPENMYOCGYAHUGLOVKUGCKNUOHSUOHXTOUSEFWHAECDWCUOHELQTLUZDNPBOILPCUGLUPADWCRKIMY | WHEN IN THE COURSE OF HUMAN EVENTS IT BECOMES NECESSARY FOR ONE PEOPLE TO DISSOLVE THE POLITICAL BANDS WHICH HAVE CONNECTED THEM WITH ANOTHER THEY SHOULD DECLARE THE CAUSES WHICH IMPEL THE SEPARATION | playfair | playfair | polygraphic | {
"type": "keyword",
"value": "PALACE"
} | intermediate | en | 172 | 172 | cipher_museum | 2.0 | public | null | null |
sigaba-v2-0208 | YOEWLYSOKVZITWPZOJFHVFKEHIOZQJCQZQJUQJVKAEJPZYTCJJUQRAFDWEFFJHQRHEFOGFPNRRVTRHLQI | YOEWLYSOKVZITWPZOJFHVFKEHIOZQJCQZQJUQJVKAEJPZYTCJJUQRAFDWEFFJHQRHEFOGFPNRRVTRHLQI | THOSE WHO CANNOT REMEMBER THE PAST ARE CONDEMNED TO REPEAT IT AS PHILOSOPHER SANTAYANA OBSERVED | sigaba | sigaba | machine | {
"type": "seed",
"value": "ARMY"
} | expert | en | 81 | 81 | cipher_museum | 2.0 | public | null | null |
geheimschreiber-v2-0335 | VZTCIFNGRYPQFCKXNTGREWQCAOFITHAYZIEJCYCMTKTDLGORRMOCQHGAADHNQUULCNAOIGDXLELKDFM | VZTCIFNGRYPQFCKXNTGREWQCAOFITHAYZIEJCYCMTKTDLGORRMOCQHGAADHNQUULCNAOIGDXLELKDFM | THE PRICE OF LIBERTY IS ETERNAL VIGILANCE AND THE WILL TO DEFEND IT AGAINST ALL FOES AND THREATS | geheimschreiber | geheimschreiber | machine | {
"type": "seed",
"value": "GOTHIC"
} | expert | en | 79 | 79 | cipher_museum | 2.0 | public | null | null |
porta-v2-0057 | DVMZOWRVWWEFDNKVLFHRCNEQVUUMXKFSHMPURYYBFJUVGVFGAUYIPKOBGAHFBAXAPEWUYSN | DVMZOWRVWWEFDNKVLFHRCNEQVUUMXKFSHMPURYYBFJUVGVFGAUYIPKOBGAHFBAXAPEWUYSN | WITH MALICE TOWARD NONE WITH CHARITY FOR ALL LET US BIND UP THE NATIONS WOUNDS AND HEAL | porta | porta | polyalphabetic | {
"type": "keyword",
"value": "NAPLES"
} | intermediate | en | 71 | 71 | cipher_museum | 2.0 | public | null | null |
cda-0017120 | MAEGA HDZEH CAYEI LTHNO DAIHD ZEHTS AHMOA SITSA HASZI HWOLL ACHEE TSAHW OLLAC HEEDI BEHYA ZZIET SAHAS ZIHDI BEHTK INDIB EHMOA SIWOL LACHE ETSAH GAHDZ EHAKE HDIGL INIDZ EHWOL LACHE EDIBE HYAZZ IEGLO EIHDZ EHWOL LACHE EKLIZ ZIEMO ASITK INCLA GIAIH LINDZ EHGAH DIBEH | MAEGA HDZEH CAYEI LTHNO DAIHD ZEHTS AHMOA SITSA HASZI HWOLL ACHEE TSAHW OLLAC HEEDI BEHYA ZZIET SAHAS ZIHDI BEHTK INDIB EHMOA SIWOL LACHE ETSAH GAHDZ EHAKE HDIGL INIDZ EHWOL LACHE EDIBE HYAZZ IEGLO EIHDZ EHWOL LACHE EKLIZ ZIEMO ASITK INCLA GIAIH LINDZ EHGAH DIBEH | FREQUENCY ANALYSIS CAN REVEAL WEAK CIPHERS | navajo_code | navajo_code | null | {} | hard | en | 220 | 220 | synthetic_educational | null | null | [
"codebook_frequency",
"word_list_attack"
] | Navajo Code Talker cipher: Navajo words represent English letters. |
cda-0020294 | AAAAA BAAAB AAABA BABBA BAABA AAAAA ABABA AABAA ABAAA BAAAB AAAAA BAAAA ABBAB AAABB BAABB BAAAB AABAA AAABB AAAAB BABBA BAAAB ABBBA AAAAA BAAAA BAABA AAAAA ABBAA BAAAB BAABA ABBAB AABAA ABBAA AAABA BAAAA BABBA ABBBA BAABA ABABB AABAA BAAAB BAAAB AAAAA AABBA AABAA BAAAB | AAAAA BAAAB AAABA BABBA BAABA AAAAA ABABA AABAA ABAAA BAAAB AAAAA BAAAA ABBAB AAABB BAABB BAAAB AABAA AAABB AAAAB BABBA BAAAB ABBBA AAAAA BAAAA BAABA AAAAA ABBAA BAAAB BAABA ABBAB AABAA ABBAA AAABA BAAAA BABBA ABBBA BAABA ABABB AABAA BAAAB BAAAB AAAAA AABBA AABAA BAAAB | A SCYTALE IS A ROD USED BY SPARTANS TO ENCRYPT MESSAGES | bacon_cipher | bacon_cipher | null | {} | hard | en | 225 | 225 | synthetic_educational | null | null | [
"five_bit_decode",
"ab_frequency_analysis"
] | Bacon's biliteral cipher: each letter encoded as 5-bit A/B string. |
diana-v2-0048 | RPCNXNVMWVBZRIUGYNRNKCEPKONTWEKSVNWFNLCGGZFAAIPRAHVSRGJVJOYANAUOLRLW | RPCNXNVMWVBZRIUGYNRNKCEPKONTWEKSVNWFNLCGGZFAAIPRAHVSRGJVJOYANAUOLRLW | ALL THE WORLDS A STAGE AND EACH MAN IN HIS TIME PLAYS MANY PARTS ON LIFES GREAT STAGE | diana | diana | polyalphabetic | {
"type": "keyword",
"value": "RANGER"
} | intermediate | en | 68 | 68 | cipher_museum | 2.0 | public | null | null |
cda-0017007 | XVGKL MGAAL NIXQK PGWLQ SIOIS EAHUX FMGZG IMYZR OUWGT MNTCW YAUFG EQJWO VOYCI VSFMC JIKZJ FRUNM ZGNAQ IDRZM GTEGZ GVPLJ QRBBG IZHFC WNWYI YHPQP RRCEJ QXGNY NCTCE BPPMC MKXWL VJMXV QKFXV RJENL AFSJW VSUZJ OW | XVGKL MGAAL NIXQK PGWLQ SIOIS EAHUX FMGZG IMYZR OUWGT MNTCW YAUFG EQJWO VOYCI VSFMC JIKZJ FRUNM ZGNAQ IDRZM GTEGZ GVPLJ QRBBG IZHFC WNWYI YHPQP RRCEJ QXGNY NCTCE BPPMC MKXWL VJMXV QKFXV RJENL AFSJW VSUZJ OW | SECURITY CLAIMS SHOULD BE TESTED UNDER SCRUTINY A STRONG CLAIM NEEDS STRONG EVIDENCE THE ONE TIME PAD IS THEORETICALLY UNBREAKABLE IF USED CORRECTLY POLYALPHABETIC CIPHERS USE MULTIPLE ALPHABET SHIFTS | running_key | running_key | null | {} | hard | en | 172 | 172 | synthetic_educational | null | null | [
"index_of_coincidence",
"probable_plaintext"
] | Running-key cipher: Vigenère with a very long key (e.g. a book passage). |
cda-0014633 | YYIJ LMGJ CMVU DAAX ZGRN UZVR CPOX HOCT EOES WTMY BGYG WFOU ZCXI EPPR QTPM KAJV BSAT UHFP YTQU QLQR CKDN R | YYIJ LMGJ CMVU DAAX ZGRN UZVR CPOX HOCT EOES WTMY BGYG WFOU ZCXI EPPR QTPM KAJV BSAT UHFP YTQU QLQR CKDN R | FREQUENCY ANALYSIS CAN REVEAL WEAK CIPHERS ALAN TURING BROKE ENIGMA WITH CRIBS AND THE BOMBE MACHINE | running_key | running_key | null | {} | hard | en | 85 | 85 | synthetic_educational | null | null | [
"index_of_coincidence",
"probable_plaintext"
] | Running-key cipher: Vigenère with a very long key (e.g. a book passage). |
typex-v2-0166 | VKCBZOKLUODMJWZDBXWYNEFZ | VKCBZOKLUODMJWZDBXWYNEFZ | NORTH STAR HOLDS FIRM COURSE | typex | typex | machine | {
"type": "keyword",
"value": "BRITAIN"
} | expert | en | 24 | 24 | cipher_museum | 2.0 | public | null | null |
sigaba-v2-0304 | RKFHLPKMFTVRRNVWCCYAXBKQYJGIQVJBZPFDGGWOBJNBHVDSCDTWRXCRBEPLJVGBZADOMLPF | RKFHLPKMFTVRRNVWCCYAXBKQYJGIQVJBZPFDGGWOBJNBHVDSCDTWRXCRBEPLJVGBZADOMLPF | GENERAL GRANT HAS TAKEN VICKSBURG THE GREAT RIVER IS NOW OPEN FROM ITS SOURCE TO THE SEA | sigaba | sigaba | machine | {
"type": "seed",
"value": "FREEDOM"
} | expert | en | 72 | 72 | cipher_museum | 2.0 | public | null | null |
cda-0015264 | 16.7.8 10.29.9 2.26.11 7.46.11 14.10.6 17.15.11 17.15.15 4.31.8 10.46.15 10.18.1 2.27.1 19.7.11 20.23.14 14.46.9 13.33.9 16.15.11 7.36.9 19.40.15 17.11.10 7.9.4 14.4.7 3.27.15 11.29.11 8.15.8 9.39.8 18.48.6 4.1.6 6.8.9 5.32.4 5.38.14 9.19.3 7.3.11 6.47.5 16.24.4 1.38.15 15.33.1 9.31.13 17.15.4 2.19.8 15.42.9 19.2.13 16... | 16.7.8 10.29.9 2.26.11 7.46.11 14.10.6 17.15.11 17.15.15 4.31.8 10.46.15 10.18.1 2.27.1 19.7.11 20.23.14 14.46.9 13.33.9 16.15.11 7.36.9 19.40.15 17.11.10 7.9.4 14.4.7 3.27.15 11.29.11 8.15.8 9.39.8 18.48.6 4.1.6 6.8.9 5.32.4 5.38.14 9.19.3 7.3.11 6.47.5 16.24.4 1.38.15 15.33.1 9.31.13 17.15.4 2.19.8 15.42.9 19.2.13 16... | COLUMNAR TRANSPOSITION READS COLUMNS IN KEY ORDER DO NOT CONFUSE OBFUSCATION WITH ENCRYPTION TWO SQUARE CIPHER ENCRYPTS DIGRAPHS WITH TWO POLYBIUS ALPHABETS SLOWLY | book_cipher | book_cipher | null | {} | hard | en | 141 | 141 | synthetic_educational | null | null | [
"book_cipher_attack",
"triple_index_search"
] | Book cipher: coordinates (page.line.word) referencing a shared document. |
adfgx-v2-0284 | FFGGDADGDFFXFDAFADFGFFGGDADFXGDADADGGGDGFXGFFADFGXDDGFDXGGFGAXGFADFAAAGAXADAADXGDAAADGDAFFAAFDDGDDFGFGFAAAFAAFGDFGXFXGDGAXFFAADGGDGFDAAGXAAAAFDFAAGD | FFGGDADGDFFXFDAFADFGFFGGDADFXGDADADGGGDGFXGFFADFGXDDGFDXGGFGAXGFADFAAAGAXADAADXGDAAADGDAFFAAFDDGDDFGFGFAAAFAAFGDFGXFXGDGAXFFAADGGDGFDAAGXAAAAFDFAAGD | GOOD NIGHT GOOD NIGHT PARTING IS SUCH SWEET SORROW THAT I SHALL SAY GOOD NIGHT TILL MORROW | adfgx | adfgx | fractionation | {
"polybius": "TRIUMPH",
"columnar": "JUSTICE"
} | advanced | en | 148 | 148 | cipher_museum | 2.0 | public | null | null |
cda-0022060 | KLOBZOKSZYVGRX XRKSVIH FHV NFOGRKOV ZOKSZYVG HSRUGH | KLOBZOKSZYVGRX XRKSVIH FHV NFOGRKOV ZOKSZYVG HSRUGH | POLYALPHABETIC CIPHERS USE MULTIPLE ALPHABET SHIFTS | atbash | atbash | null | {} | medium | en | 46 | 46 | synthetic_educational | null | null | [
"self_inverse_check",
"frequency_analysis"
] | Atbash maps A↔Z, B↔Y, … and is its own inverse. |
m209-v3-0327 | JWZITAYBCAYVQL | JWZITAYBCAYVQL | THE SIEGE BEGINS | m209 | m209 | machine | {
"type": "seed",
"value": "VICTORY"
} | expert | en | 14 | 14 | cipher_museum | 2.0 | public | null | null |
monoalphabetic-v2-0540 | GCIROQX KO ERLQA | GCIROQX KO ERLQA | LIBERTY OR DEATH | monoalphabetic | monoalphabetic | substitution | {
"type": "keyword",
"value": "LIBERTY"
} | beginner | en | 14 | 16 | cipher_museum | 2.0 | public | null | null |
confederate-vigenere-v3-0465 | KTRADRZTIBHETMNDYAJZLCPMIWRLFTCENCMEKNWPICUTMIVZLITCICKCGNVCCFQUTCENZRA | KTRADRZTIBHETMNDYAJZLCPMIWRLFTCENCMEKNWPICUTMIVZLITCICKCGNVCCFQUTCENZRA | IT WAS A BRIGHT COLD DAY IN APRIL AND THE CLOCKS WERE STRIKING THIRTEEN ACROSS THE CITY | confederate_vigenere | confederate_vigenere | polyalphabetic | {
"type": "keyword",
"value": "CAVALRY"
} | intermediate | en | 71 | 71 | cipher_museum | 2.0 | public | null | null |
argenti-v2-0055 | 57 82 45 59 32 87 51 65 21 14 41 22 82 30 18 66 21 52 72 51 66 16 44 24 82 21 88 30 69 22 82 75 57 73 16 36 56 32 23 57 14 73 65 78 71 32 39 21 14 43 65 24 44 88 73 41 22 35 16 82 72 51 14 43 88 22 57 75 73 66 44 32 19 88 21 | 57 82 45 59 32 87 51 65 21 14 41 22 82 30 18 66 21 52 72 51 66 16 44 24 82 21 88 30 69 22 82 75 57 73 16 36 56 32 23 57 14 73 65 78 71 32 39 21 14 43 65 24 44 88 73 41 22 35 16 82 72 51 14 43 88 22 57 75 73 66 44 32 19 88 21 | ARMY OF NORTHERN VIRGINIA SURRENDERS AT APPOMATTOX COURTHOUSE THE WAR IN THE EAST IS OVER | argenti | argenti | nomenclator | {
"type": "seed",
"value": "ROME"
} | expert | en | 150 | 224 | cipher_museum | 2.0 | public | null | null |
fractionated-morse-v2-0519 | CDALTXCGDQMAPSDQEML | CDALTXCGDQMAPSDQEML | ABORT AND WITHDRAW | fractionated_morse | fractionated_morse | fractionation | {
"type": "keyword",
"value": "JUSTICE"
} | advanced | en | 19 | 19 | cipher_museum | 2.0 | public | null | null |
great-cipher-v2-0234 | 161 147 180 179 122 162 156 165 167 161 115 119 128 142 177 160 161 147 180 127 115 147 175 149 157 112 148 174 161 147 180 149 168 136 182 105 114 178 134 179 155 125 100 170 180 117 131 100 166 119 100 168 153 114 135 140 166 132 177 173 176 168 100 180 117 171 117 135 114 140 125 153 142 165 149 129 101 180 173 177 ... | 161 147 180 179 122 162 156 165 167 161 115 119 128 142 177 160 161 147 180 127 115 147 175 149 157 112 148 174 161 147 180 149 168 136 182 105 114 178 134 179 155 125 100 170 180 117 131 100 166 119 100 168 153 114 135 140 166 132 177 173 176 168 100 180 117 171 117 135 114 140 125 153 142 165 149 129 101 180 173 177 ... | WITH MALICE TOWARD NONE WITH CHARITY FOR ALL WITH FIRMNESS IN THE RIGHT AS GOD GIVES US TO SEE THE RIGHT LET US STRIVE ON TO FINISH THE WORK WE ARE IN TO BIND UP THE NATIONS WOUNDS | great_cipher | great_cipher | nomenclator | {
"type": "seed",
"value": "ROSSIGNOL"
} | expert | en | 315 | 419 | cipher_museum | 2.0 | public | null | null |
slidex-v2-0236 | MHCBHMNPOQLKRXSSMMSADLILMHCBHMNPOQLKRXSSCKAVOHFCQWEVYASIILARYORDZVNXIQOCRDCKCYAVOHIQOCJKUCUWSIILARYORDZVNXIQOCEWYOSIILARYOLPGOUKCCUCYAAS | MHCBHMNPOQLKRXSSMMSADLILMHCBHMNPOQLKRXSSCKAVOHFCQWEVYASIILARYORDZVNXIQOCRDCKCYAVOHIQOCJKUCUWSIILARYORDZVNXIQOCEWYOSIILARYOLPGOUKCCUCYAAS | WE SHALL FIGHT ON THE BEACHES WE SHALL FIGHT ON THE LANDING GROUNDS WE SHALL FIGHT IN THE FIELDS AND IN THE STREETS WE SHALL FIGHT IN THE HILLS WE SHALL NEVER SURRENDER | slidex | slidex | transposition | {
"type": "keyword",
"value": "LIBERTY"
} | advanced | en | 136 | 136 | cipher_museum | 2.0 | public | null | null |
trifid-v2-0536 | +AEDTTUJTMDQV | +AEDTTUJTMDQV | E PLURIBUS UNUM | trifid | trifid | fractionation | {
"type": "keyword",
"value": "JUSTICE"
} | advanced | en | 13 | 13 | cipher_museum | 2.0 | public | null | null |
argenti-v3-0299 | 47 11 77 29 36 44 69 16 64 28 57 49 11 58 27 29 69 24 33 63 61 64 29 10 69 38 28 22 87 77 75 25 42 29 58 27 69 86 11 34 44 29 16 61 28 88 23 11 10 39 75 20 69 13 42 77 28 43 11 63 64 71 38 49 75 59 28 36 44 29 16 61 11 57 23 28 39 42 65 11 64 15 | 47 11 77 29 36 44 69 16 64 28 57 49 11 58 27 29 69 24 33 63 61 64 29 10 69 38 28 22 87 77 75 25 42 29 58 27 69 86 11 34 44 29 16 61 28 88 23 11 10 39 75 20 69 13 42 77 28 43 11 63 64 71 38 49 75 59 28 36 44 29 16 61 11 57 23 28 39 42 65 11 64 15 | ZERO KNOWLEDGE PROOFS ALLOW ONE PARTY TO PROVE KNOWLEDGE WITHOUT REVEALING THE KNOWLEDGE ITSELF | argenti | argenti | nomenclator | {
"type": "seed",
"value": "VATICAN"
} | expert | en | 164 | 245 | cipher_museum | 2.0 | public | null | null |
atbash-v2-0013 | HGZB GSV XLFIHV | HGZB GSV XLFIHV | STAY THE COURSE | atbash | atbash | substitution | {
"type": "none",
"value": null
} | beginner | en | 13 | 15 | cipher_museum | 2.0 | public | null | null |
kryptos-022 | AXCMBLRROJHODADFPC | AXCMBLRROJHODADFPC | AWAIT FURTHER ORDERS | kryptos | kryptos | polyalphabetic | {
"type": "keyword",
"value": "KRYPTOS"
} | advanced | en | 18 | 18 | cipher_museum | 0.2 | public | null | null |
trifid-v2-0441 | FCCGJ+GMGGQVDMB+DIZIAAEEWG+EPJOQDPOKTXIJNBEMWUADPNFD+YXHADENUIBWCHHHOZMGRM | FCCGJ+GMGGQVDMB+DIZIAAEEWG+EPJOQDPOKTXIJNBEMWUADPNFD+YXHADENUIBWCHHHOZMGRM | FOR GOD SO LOVED THE WORLD THAT HE GAVE HIS ONLY SON THAT WHOEVER BELIEVES SHALL NOT PERISH | trifid | trifid | fractionation | {
"type": "keyword",
"value": "FREEDOM"
} | advanced | en | 74 | 74 | cipher_museum | 2.0 | public | null | null |
cda-0017485 | TVNYF XJKUB EEDTW PCTHM BVMPX HKEAR WNKOC CNXHQ FBMGR HEFZI RIGEI ODSYB GIRZP POXGK TZCKE MOFXZ ZHGFB WJYVQ XUKWY QHFCH UFMUE EDFAW VBTJC QPGOC SWWGD KDBKQ SAKMZ ISRJU JSRNL | TVNYF XJKUB EEDTW PCTHM BVMPX HKEAR WNKOC CNXHQ FBMGR HEFZI RIGEI ODSYB GIRZP POXGK TZCKE MOFXZ ZHGFB WJYVQ XUKWY QHFCH UFMUE EDFAW VBTJC QPGOC SWWGD KDBKQ SAKMZ ISRJU JSRNL | POLYBIUS ENCODED LETTERS AS PAIRS OF NUMBERS FROM ONE TO FIVE INDEX OF COINCIDENCE MEASURES LETTER FREQUENCY DISTRIBUTION SECURITY CLAIMS SHOULD BE TESTED UNDER SCRUTINY | vernam | vernam | null | {} | hard | en | 145 | 145 | synthetic_educational | null | null | [
"key_reuse_attack",
"information_theoretic_proof"
] | Vernam cipher: XOR-based stream cipher; with a random key equivalent to OTP. |
cardano-autokey-056 | YAXALTTSDAPSTYALYHVBXHVLTTXWAVBFUHVKHTTFDMMAFVTTVWJGVNHVWBRWLTBMTAZQDMLBKGMVFMLVHRAQWLBKVKRNDKCTTBRNGFJDLHJTFKALGQAYABQHJJRFWTGFAAHXXALKKRRVRLHAPQFRV | YAXALTTSDAPSTYALYHVBXHVLTTXWAVBFUHVKHTTFDMMAFVTTVWJGVNHVWBRWLTBMTAZQDMLBKGMVFMLVHRAQWLBKVKRNDKCTTBRNGFJDLHJTFKALGQAYABQHJJRFWTGFAAHXXALKKRRVRLHAPQFRV | WE THE PEOPLE OF THE UNITED STATES IN ORDER TO FORM A MORE PERFECT UNION ESTABLISH JUSTICE INSURE DOMESTIC TRANQUILITY PROVIDE FOR THE COMMON DEFENSE PROMOTE THE GENERAL WELFARE | cardano_autokey | cardano_autokey | polyalphabetic | {
"type": "keyword",
"value": "CARDANO"
} | advanced | en | 149 | 149 | cipher_museum | 0.2 | public | null | null |
cda-0020225 | 16.6.1 12.1.8 14.4.7 11.2.8 9.2.8 4.3.7 20.6.2 2.1.10 11.4.5 8.1.7 11.2.10 10.2.8 19.6.5 8.1.3 4.5.10 6.1.10 10.4.1 19.4.1 7.5.4 10.4.6 7.1.7 5.2.9 11.2.7 5.2.4 15.2.4 4.6.9 11.2.8 17.4.2 9.6.9 9.2.7 15.3.9 14.2.7 4.6.9 8.2.3 20.1.4 11.3.1 4.3.1 11.3.1 14.4.9 2.4.10 15.6.2 20.3.2 12.2.9 10.5.7 19.4.9 16.5.1 18.4.4 20.6... | 16.6.1 12.1.8 14.4.7 11.2.8 9.2.8 4.3.7 20.6.2 2.1.10 11.4.5 8.1.7 11.2.10 10.2.8 19.6.5 8.1.3 4.5.10 6.1.10 10.4.1 19.4.1 7.5.4 10.4.6 7.1.7 5.2.9 11.2.7 5.2.4 15.2.4 4.6.9 11.2.8 17.4.2 9.6.9 9.2.7 15.3.9 14.2.7 4.6.9 8.2.3 20.1.4 11.3.1 4.3.1 11.3.1 14.4.9 2.4.10 15.6.2 20.3.2 12.2.9 10.5.7 19.4.9 16.5.1 18.4.4 20.6... | OBSERVABLE EVIDENCE COMES BEFORE CONFIDENCE DIFFIE AND HELLMAN INTRODUCED PUBLIC KEY CRYPTOGRAPHY IN NINETEEN SEVENTY SIX MODERN ENCRYPTION IS NOT BROKEN BY LETTER FREQUENCY | arnold_andre | arnold_andre | null | {} | hard | en | 150 | 150 | synthetic_educational | null | null | [
"book_cipher_attack",
"triple_index_search"
] | Arnold-André book cipher: coordinates (page.section.word) referencing a shared text. |
great-cipher-159 | 167 163 105 180 125 167 107 122 163 181 149 155 104 159 177 153 108 153 116 165 104 100 129 170 144 159 153 174 165 115 107 145 105 | 167 163 105 180 125 167 107 122 163 181 149 155 104 159 177 153 108 153 116 165 104 100 129 170 144 159 153 174 165 115 107 145 105 | FORTUNE FAVORS THE BOLD AND THE BRAVE WHO DARE TO ACT | great_cipher | great_cipher | nomenclator | {
"type": "seed",
"value": "SECRET"
} | expert | en | 99 | 131 | cipher_museum | 0.2 | public | null | null |
cda-0020970 | ypchol chedy ykcheol qokeedy sheol daral okshy otedy otaiin shedy qokedy oror dainy qokeedy otain ytedy qokeedy raiin okeedy okal qokal lkaiin qokeedy ctaiin daral otain chor okshy sheedy okshy qokedy okal cheol okeedy choldaiin otaiin okshy okedy qotedy cheol otol chedal lkaiin okeedy | ypchol chedy ykcheol qokeedy sheol daral okshy otedy otaiin shedy qokedy oror dainy qokeedy otain ytedy qokeedy raiin okeedy okal qokal lkaiin qokeedy ctaiin daral otain chor okshy sheedy okshy qokedy okal cheol okeedy choldaiin otaiin okshy okedy qotedy cheol otol chedal lkaiin okeedy | HILL CIPHER USES LINEAR ALGEBRA TO ENCRYPT BLOCKS OF LETTERS ENTROPY MEASURES UNCERTAINTY IN A DISTRIBUTION PUBLIC INFRASTRUCTURE DESERVES CAREFUL DESIGN | voynich_render | voynich_render | null | {} | hard | en | 243 | 243 | synthetic_educational | null | null | [
"statistical_analysis",
"unsolved"
] | Voynich manuscript: undeciphered 15th-century script; pseudo-syllabic output. |
cda-0021997 | UIRV WNZM VHGR NZGV WPVB OVMT GSUI LNHG ZGRH GRXH GSVV MRTN ZNZX SRMV FHVW ILGL IHGL XIVZ GVZK LOBZ OKSZ YVGR XXRK SVI | UIRV WNZM VHGR NZGV WPVB OVMT GSUI LNHG ZGRH GRXH GSVV MRTN ZNZX SRMV FHVW ILGL IHGL XIVZ GVZK LOBZ OKSZ YVGR XXRK SVI | FRIEDMAN ESTIMATED KEY LENGTH FROM STATISTICS THE ENIGMA MACHINE USED ROTORS TO CREATE A POLYALPHABETIC CIPHER | atbash | atbash | null | {} | hard | en | 95 | 95 | synthetic_educational | null | null | [
"self_inverse_check",
"frequency_analysis"
] | Atbash maps A↔Z, B↔Y, … and is its own inverse. |
cda-0005289 | FCEA TNSA ALDP UOLN IOIO RTOX LSSS EAGX | FCEA TNSA ALDP UOLN IOIO RTOX LSSS EAGX | FAIL CLOSED IS A POSTURE NOT A SLOGAN | scytale | scytale | null | {
"cols": 4
} | medium | en | 32 | 32 | synthetic_educational | null | null | [
"column_count_search",
"anagram_recovery"
] | Scytale: Spartan cylinder cipher — wrap text around a rod of fixed diameter. |
joseon-yeokhak-v3-0196 | KVSBWBHVSQCIFGSCTVIAOBSJSBHGWHPSQCASGBSQSGGOFMTCFCBSDSCDZSHCRWGGCZJSHVSDCZWHWQOZPOBRGKVWQVVOJSQCBBSQHSRHVSAKWHVOBCHVSFHVSMGVCIZRRSQZOFSHVSQOIGSGKVWQVWADSZHVSGSDOFOHWCB | KVSBWBHVSQCIFGSCTVIAOBSJSBHGWHPSQCASGBSQSGGOFMTCFCBSDSCDZSHCRWGGCZJSHVSDCZWHWQOZPOBRGKVWQVVOJSQCBBSQHSRHVSAKWHVOBCHVSFHVSMGVCIZRRSQZOFSHVSQOIGSGKVWQVWADSZHVSGSDOFOHWCB | WHEN IN THE COURSE OF HUMAN EVENTS IT BECOMES NECESSARY FOR ONE PEOPLE TO DISSOLVE THE POLITICAL BANDS WHICH HAVE CONNECTED THEM WITH ANOTHER THEY SHOULD DECLARE THE CAUSES WHICH IMPEL THE SEPARATION | joseon_yeokhak | joseon_yeokhak | substitution | {
"type": "keyword",
"value": "JOSEON"
} | beginner | en | 167 | 167 | cipher_museum | 2.0 | public | null | null |
autokey-v3-0209 | EPFSITAELLOJSRZOLN | EPFSITAELLOJSRZOLN | THE ORACLE HAS SPOKEN | autokey | autokey | polyalphabetic | {
"type": "keyword",
"value": "LIBERTY"
} | intermediate | en | 18 | 18 | cipher_museum | 2.0 | public | null | null |
cda-0015645 | 25 69 69 11 82 11 59 52 68 66 50 69 29 68 57 66 69 69 57 61 82 73 65 57 68 50 29 66 36 82 50 80 57 50 77 50 66 61 52 68 82 61 68 80 61 36 50 76 66 82 11 66 36 82 68 57 65 36 68 20 82 66 20 43 66 36 80 82 82 65 69 61 50 66 50 69 29 61 | 25 69 69 11 82 11 59 52 68 66 50 69 29 68 57 66 69 69 57 61 82 73 65 57 68 50 29 66 36 82 50 80 57 50 77 50 66 61 52 68 82 61 68 80 61 36 50 76 66 82 11 66 36 82 68 57 65 36 68 20 82 66 20 43 66 36 80 82 82 65 69 61 50 66 50 69 29 61 | GOOD EDUCATIONAL TOOLS EXPLAIN THEIR LIMITS CAESAR SHIFTED THE ALPHABET BY THREE POSITIONS | wallis_cipher | wallis_cipher | null | {} | medium | en | 78 | 78 | synthetic_educational | null | null | [
"number_substitution_decode",
"frequency_analysis"
] | Wallis cipher: each letter mapped to a unique two-digit number from a fixed table. |
argenti-v3-0089 | 82 44 57 22 51 71 21 59 36 14 66 32 30 82 88 25 72 22 75 65 51 73 41 88 45 16 14 43 22 23 57 73 66 13 16 53 69 72 87 15 66 71 24 25 14 55 32 87 15 57 13 73 65 21 72 30 52 14 41 88 56 82 32 34 39 71 73 65 87 14 35 32 53 16 21 79 22 36 82 66 45 88 44 | 82 44 57 22 51 71 21 59 36 14 66 32 30 82 88 25 72 22 75 65 51 73 41 88 45 16 14 43 22 23 57 73 66 13 16 53 69 72 87 15 66 71 24 25 14 55 32 87 15 57 13 73 65 21 72 30 52 14 41 88 56 82 32 34 39 71 73 65 87 14 35 32 53 16 21 79 22 36 82 66 45 88 44 | RSA ENCRYPTION RELIES ON THE MATHEMATICAL DIFFICULTY OF FACTORING THE PRODUCT OF TWO LARGE PRIMES | argenti | argenti | nomenclator | {
"type": "seed",
"value": "ROME"
} | expert | en | 166 | 248 | cipher_museum | 2.0 | public | null | null |
adfgvx-065 | GVDAAGAGGAVADDXAFGADDAAAVADAFA | GVDAAGAGGAVADDXAFGADDAAAVADAFA | THE COAST IS CLEAR | adfgvx | adfgvx | fractionation | {
"polybius": "CIPHER",
"columnar": "MUSEUM"
} | advanced | en | 30 | 30 | cipher_museum | 0.2 | public | null | null |
double-transposition-v3-0231 | AEDALIUHFSLLA | AEDALIUHFSLLA | FULL SAIL AHEAD | double_transposition | double_transposition | transposition | {
"key1": "TRIUMPH",
"key2": "JUSTICE"
} | advanced | en | 13 | 13 | cipher_museum | 2.0 | public | null | null |
cda-0013404 | 35 11 44 44 15 42 33 52 34 42 14 43 23 15 31 35 12 42 15 11 25 32 34 33 34 11 31 35 23 11 12 15 44 24 13 43 45 12 43 44 24 44 45 44 24 34 33 43 45 12 43 44 24 44 45 44 24 34 33 13 24 35 23 15 42 43 32 11 35 15 11 13 23 31 15 44 44 15 42 44 34 11 14 24 21 21 15 42 15 33 44 31 15 44 44 15 42 15 51 15 42 54 43 54 43 44 15... | 35 11 44 44 15 42 33 52 34 42 14 43 23 15 31 35 12 42 15 11 25 32 34 33 34 11 31 35 23 11 12 15 44 24 13 43 45 12 43 44 24 44 45 44 24 34 33 43 45 12 43 44 24 44 45 44 24 34 33 13 24 35 23 15 42 43 32 11 35 15 11 13 23 31 15 44 44 15 42 44 34 11 14 24 21 21 15 42 15 33 44 31 15 44 44 15 42 15 51 15 42 54 43 54 43 44 15... | PATTERN WORDS HELP BREAK MONOALPHABETIC SUBSTITUTION SUBSTITUTION CIPHERS MAP EACH LETTER TO A DIFFERENT LETTER EVERY SYSTEM NEEDS AN HONEST THREAT MODEL | polybius | polybius | null | {} | hard | en | 132 | 132 | synthetic_educational | null | null | [
"pair_decode",
"frequency_analysis"
] | Polybius square: 5×5 grid maps letters to two-digit row-column pairs. |
four-square-043 | ELXLALOWSUKUPWXMUERQIIRBXCXFMCOYDFKQAFMQFYXPBICIEFCQEHIQAZ | ELXLALOWSUKUPWXMUERQIIRBXCXFMCOYDFKQAFMQFYXPBICIEFCQEHIQAZ | ELEMENTARY MY DEAR WATSON THE GAME IS AFOOT AND THE CRIMINAL IS CLOSE | four_square | four_square | polygraphic | {
"key1": "EXAMPLE",
"key2": "KEYWORD"
} | advanced | en | 58 | 58 | cipher_museum | 0.2 | public | null | null |
playfair-v2-0936 | QLALTCEPADQGCTWLTEVWBSAIWPZAPNCOCXMPZEWPMBRWESPMZAPNYNCTWDDSFPETXWCOMPWEMTEKEPDTWLIZCTGWZAFXRWTCWRWFCMQDTCQTBOMTPOPFDXHZGEEHBOIWYCIBRWUWHZHOMPCYMAGATMWYQMTDLCUNDTNODEMTNZPDBO | QLALTCEPADQGCTWLTEVWBSAIWPZAPNCOCXMPZEWPMBRWESPMZAPNYNCTWDDSFPETXWCOMPWEMTEKEPDTWLIZCTGWZAFXRWTCWRWFCMQDTCQTBOMTPOPFDXHZGEEHBOIWYCIBRWUWHZHOMPCYMAGATMWYQMTDLCUNDTNODEMTNZPDBO | 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 | playfair | playfair | polygraphic | {
"type": "keyword",
"value": "WISDOM"
} | intermediate | en | 174 | 174 | cipher_museum | 2.0 | public | null | null |
cardano-autokey-v3-0157 | NPHVZRBHRCXUFKAHGHTNONALSILMXVUCPUFUXBRWSSLALFPBUVAYQVZKJHRUWHCYRLEVTDNZV | NPHVZRBHRCXUFKAHGHTNONALSILMXVUCPUFUXBRWSSLALFPBUVAYQVZKJHRUWHCYRLEVTDNZV | I HAVE NOT YET BEGUN TO FIGHT SAID JOHN PAUL JONES AS THE BONHOMME RICHARD TOOK HEAVY FIRE | cardano_autokey | cardano_autokey | polyalphabetic | {
"type": "keyword",
"value": "FLORENCE"
} | advanced | en | 73 | 73 | cipher_museum | 2.0 | public | null | null |
kl7-v3-0137 | IPAPMMGYAEWP | IPAPMMGYAEWP | YANKEE DOODLE | kl7 | kl7 | machine | {
"type": "seed",
"value": "LIBERTY"
} | expert | en | 12 | 12 | cipher_museum | 2.0 | public | null | null |
nihilist-v3-0300 | 97 46 59 65 45 76 45 59 43 36 83 47 46 65 | 97 46 59 65 45 76 45 59 43 36 83 47 46 65 | THE SIEGE BEGINS | nihilist | nihilist | fractionation | {
"polybius": "NARODNAYA",
"keyword": "VOLYA"
} | advanced | en | 28 | 41 | cipher_museum | 2.0 | public | null | null |
cda-0013374 | HLZU INIO QKYO YKCX GWWL QTFJ CZGA FWOP FSBX WHSV V | HLZU INIO QKYO YKCX GWWL QTFJ CZGA FWOP FSBX WHSV V | SECURITY CLAIMS SHOULD BE TESTED UNDER SCRUTINY | one_time_pad | one_time_pad | null | {} | medium | en | 41 | 41 | synthetic_educational | null | null | [
"information_theoretic_proof",
"key_reuse_attack"
] | One-time pad: theoretically unbreakable if key is truly random and never reused. |
cda-0008785 | GUR NEPUVGRPGHER FUBHYQ ZNXR ZVFHFR UNEQRE | GUR NEPUVGRPGHER FUBHYQ ZNXR ZVFHFR UNEQRE | THE ARCHITECTURE SHOULD MAKE MISUSE HARDER | rot13 | rot13 | null | {
"shift": 13
} | medium | en | 37 | 37 | synthetic_educational | null | null | [] | |
cda-0006727 | PBYH ZANE GENA FCBF VGVB AERN QFPB YHZA FVAX RLBE QRES ERDH RAPL NANY LFVF PNAE RIRN YJRN XPVC UREF | PBYH ZANE GENA FCBF VGVB AERN QFPB YHZA FVAX RLBE QRES ERDH RAPL NANY LFVF PNAE RIRN YJRN XPVC UREF | COLUMNAR TRANSPOSITION READS COLUMNS IN KEY ORDER FREQUENCY ANALYSIS CAN REVEAL WEAK CIPHERS | rot13 | rot13 | null | {
"shift": 13
} | hard | en | 80 | 80 | synthetic_educational | null | null | [
"brute_force_26",
"self_inverse_check"
] | ROT-13 is Caesar with shift 13 — it is its own inverse. |
rail-fence-v2-0267 | ABWOARRTDAHNTDIW | ABWOARRTDAHNTDIW | ABORT AND WITHDRAW | rail_fence | rail_fence | transposition | {
"type": "integer",
"value": 9
} | intermediate | en | 16 | 16 | cipher_museum | 2.0 | public | null | null |
argenti-v2-0154 | 84 17 59 67 28 71 83 41 44 32 63 56 15 25 20 75 22 | 84 17 59 67 28 71 83 41 44 32 63 56 15 25 20 75 22 | COURAGE IN DARKNESS | argenti | argenti | nomenclator | {
"type": "seed",
"value": "PAPAL"
} | expert | en | 34 | 50 | cipher_museum | 2.0 | public | null | null |
typex-v2-0291 | AVGWYNVTHEJVBGEMWJRIWWVK | AVGWYNVTHEJVBGEMWJRIWWVK | TORPEDO AWAY ALL HANDS BRACE | typex | typex | machine | {
"type": "keyword",
"value": "EMPIRE"
} | expert | en | 24 | 24 | cipher_museum | 2.0 | public | null | null |
argenti-v2-0110 | 35 22 44 41 57 25 53 87 66 52 43 14 32 51 73 41 88 62 22 16 71 43 88 75 49 22 44 41 57 25 53 15 72 79 43 14 65 30 73 41 88 25 16 51 69 66 30 52 79 82 32 24 51 34 75 35 22 44 43 57 53 25 87 72 52 41 14 66 30 73 43 88 15 72 22 53 69 75 16 51 34 66 30 14 41 88 44 73 21 22 88 14 75 49 22 44 43 57 25 53 87 72 79 41 73 66 51... | 35 22 44 41 57 25 53 87 66 52 43 14 32 51 73 41 88 62 22 16 71 43 88 75 49 22 44 41 57 25 53 15 72 79 43 14 65 30 73 41 88 25 16 51 69 66 30 52 79 82 32 24 51 34 75 35 22 44 43 57 53 25 87 72 52 41 14 66 30 73 43 88 15 72 22 53 69 75 16 51 34 66 30 14 41 88 44 73 21 22 88 14 75 49 22 44 43 57 25 53 87 72 79 41 73 66 51... | WE SHALL FIGHT ON THE BEACHES WE SHALL FIGHT ON THE LANDING GROUNDS WE SHALL FIGHT IN THE FIELDS AND IN THE STREETS WE SHALL FIGHT IN THE HILLS WE SHALL NEVER SURRENDER | argenti | argenti | nomenclator | {
"type": "seed",
"value": "ROME"
} | expert | en | 272 | 407 | cipher_museum | 2.0 | public | null | null |
purple-134 | BAVMITRLYMVDPLRT | BAVMITRLYMVDPLRT | ALL IS LOST RETREAT | purple | purple | machine | {
"type": "seed",
"value": "SECRET"
} | expert | en | 16 | 16 | cipher_museum | 0.2 | public | null | null |
trifid-v2-0583 | BARNTJZDDXJIKRSTDVWTDFYSPTWLESBFVWTBSVKCUBXNVJDIQWOUVQOOP+QOEIKONGUXOAGAIMRTCQS | BARNTJZDDXJIKRSTDVWTDFYSPTWLESBFVWTBSVKCUBXNVJDIQWOUVQOOP+QOEIKONGUXOAGAIMRTCQS | NATURE IS WRITTEN IN THE LANGUAGE OF MATHEMATICS AND ITS CHARACTERS ARE TRIANGLES AND CIRCLES | trifid | trifid | fractionation | {
"type": "keyword",
"value": "JUSTICE"
} | advanced | en | 79 | 79 | cipher_museum | 2.0 | public | null | null |
cardano-autokey-v2-0274 | ULDDLHENQFQBDKYV | ULDDLHENQFQBDKYV | DIVIDE AND CONQUER | cardano_autokey | cardano_autokey | polyalphabetic | {
"type": "keyword",
"value": "ROME"
} | advanced | en | 16 | 16 | cipher_museum | 2.0 | public | null | null |
caesar-v2-1709 | FQ TXP QEB YBPQ LC QFJBP FQ TXP XK XDB LC TFPALJ XKA XK XDB LC RQQBO CLLIFPEKBPP | FQ TXP QEB YBPQ LC QFJBP FQ TXP XK XDB LC TFPALJ XKA XK XDB LC RQQBO CLLIFPEKBPP | IT WAS THE BEST OF TIMES IT WAS AN AGE OF WISDOM AND AN AGE OF UTTER FOOLISHNESS | caesar | caesar | substitution | {
"type": "shift",
"value": 23
} | beginner | en | 63 | 80 | cipher_museum | 2.0 | public | null | null |
cda-0020808 | 3 1 5 19 1 18 19 8 9 6 20 5 4 20 8 5 1 12 16 8 1 2 5 20 2 25 20 8 18 5 5 16 15 19 9 20 9 15 14 19 20 8 5 4 5 20 5 3 20 9 22 5 19 20 21 4 9 5 19 16 1 20 20 5 18 14 19 2 5 6 15 18 5 13 1 11 9 14 7 3 12 1 9 13 19 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 | 3 1 5 19 1 18 19 8 9 6 20 5 4 20 8 5 1 12 16 8 1 2 5 20 2 25 20 8 18 5 5 16 15 19 9 20 9 15 14 19 20 8 5 4 5 20 5 3 20 9 22 5 19 20 21 4 9 5 19 16 1 20 20 5 18 14 19 2 5 6 15 18 5 13 1 11 9 14 7 3 12 1 9 13 19 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 | CAESAR SHIFTED THE ALPHABET BY THREE POSITIONS THE DETECTIVE STUDIES PATTERNS BEFORE MAKING CLAIMS ENTROPY MEASURES UNCERTAINTY IN A DISTRIBUTION | aeneas_tacticus | aeneas_tacticus | null | {} | hard | en | 126 | 126 | synthetic_educational | null | null | [
"sequential_number_decode",
"frequency_analysis"
] | Aeneas Tacticus: Greek sequential-number cipher; A=1…Z=26. |
trifid-v2-0057 | WKPQWAPAMSWBUDUEIZJHWHPQUINPEFSTX+HPBAFWXKBSBBWGCDCVRCQMWSUOUSXPKHLSAKL | WKPQWAPAMSWBUDUEIZJHWHPQUINPEFSTX+HPBAFWXKBSBBWGCDCVRCQMWSUOUSXPKHLSAKL | WITH MALICE TOWARD NONE WITH CHARITY FOR ALL LET US BIND UP THE NATIONS WOUNDS AND HEAL | trifid | trifid | fractionation | {
"type": "keyword",
"value": "PALACE"
} | advanced | en | 71 | 71 | cipher_museum | 2.0 | public | null | null |
cda-0017317 | .. ... .. .... ... . ... . . ... .. .... ... ..... .. ... . ..... .... .. .... ..... .... ... . ..... .... ... ... . .. .... ... ... . ..... . . .... .. . . ... . .. .. . ..... . .. .... .. . . .... .... ... .... . ..... ... ... . ... .... .. ..... .... ... ..... .... .... . .. ... ... | .. ... .. .... ... . ... . . ... .. .... ... ..... .. ... . ..... .... .. .... ..... .... ... . ..... .... ... ... . .. .... ... ... . ..... . . .... .. . . ... . .. .. . ..... . .. .... .. . . .... .... ... .... . ..... ... ... . ... .... .. ..... .... ... ..... .... .... . .. ... ... | HILL CIPHER USES LINEAR ALGEBRA TO ENCRYPT BLOCKS OF LETTERS ERROR CORRECTION AND DETECTION ARE FUNDAMENTAL TO SECURE SYSTEMS THE RAIL FENCE CIPHER WRITES TEXT IN A ZIGZAG PATTERN TODAY | tap_code | tap_code | null | {} | hard | en | 156 | 156 | synthetic_educational | null | null | [
"dot_count_decode",
"grid_position_search"
] | Tap code: letters encoded as dot-groups representing row and column in 5×5 grid. |
adfgx-v3-0044 | GDFGDXGGAXGAXADDAAFAGXDAXAFGXDDDAF | GDFGDXGGAXGAXADDAAFAGXDAXAFGXDDDAF | THE RAILWAY ARRIVES | adfgx | adfgx | fractionation | {
"polybius": "PALACE",
"columnar": "BATTLE"
} | advanced | en | 34 | 34 | cipher_museum | 2.0 | public | null | null |
jefferson-disk-v2-0064 | SHYADPKZSZXIVMOUDYZOMDKPKYSZZESKRMXQZTRNDOKZBDKPKYBJTOKMIOEGZTLUTNWTDPXVZWA | SHYADPKZSZXIVMOUDYZOMDKPKYSZZESKRMXQZTRNDOKZBDKPKYBJTOKMIOEGZTLUTNWTDPXVZWA | TRUST IN THE LORD WITH ALL THINE HEART AND LEAN NOT UNTO THINE OWN UNDERSTANDING IN ALL WAYS | jefferson_disk | jefferson_disk | disk | {
"type": "disk_order",
"value": "4,2,6,1,3,5"
} | expert | en | 75 | 75 | cipher_museum | 2.0 | public | null | null |
fractionated-morse-127 | AGDLRXLCSPBDLIIKQO | AGDLRXLCSPBDLIIKQO | ABORT MISSION NOW | fractionated_morse | fractionated_morse | fractionation | {
"type": "keyword",
"value": "SECRET"
} | advanced | en | 18 | 18 | cipher_museum | 0.2 | public | null | null |
two-square-164 | SMEEPALZLEOWSTKARVSTTIDEEHFTVRUREKNKRPACSQRDLGFMYWMGIAREGACARE | SMEEPALZLEOWSTKARVSTTIDEEHFTVRUREKNKRPACSQRDLGFMYWMGIAREGACARE | THE ENEMY KNOWS THE SYSTEM DESIGN YOUR CIPHER ACCORDINGLY WITH GREAT CARE | two_square | two_square | polygraphic | {
"key1": "SECRET",
"key2": "AGENTS"
} | advanced | en | 62 | 62 | cipher_museum | 0.2 | public | null | null |
typex-v3-0310 | AAHRIDZTJBCJMERCXEAIWHKWQLODZUZDRYSXYMMNSQYKPLJRBHIUELOEKTSBGXVUJAHRAGDOXMJJWVPEUCIPDBEBLGKDNBJQICQKSYPBTYRNNQQJILUGMFVPOLETXZZHZYTKWPXLDIBHTJQNJGZKSJBGNXLWWPGESNLJI | AAHRIDZTJBCJMERCXEAIWHKWQLODZUZDRYSXYMMNSQYKPLJRBHIUELOEKTSBGXVUJAHRAGDOXMJJWVPEUCIPDBEBLGKDNBJQICQKSYPBTYRNNQQJILUGMFVPOLETXZZHZYTKWPXLDIBHTJQNJGZKSJBGNXLWWPGESNLJI | THE MANHATTAN PROJECT BROUGHT TOGETHER THE GREATEST SCIENTIFIC MINDS OF THE TWENTIETH CENTURY IN A RACE TO BUILD THE ATOMIC BOMB BEFORE NAZI GERMANY COULD DO SO THE EFFORT CHANGED THE WORLD FOREVER | typex | typex | machine | {
"type": "keyword",
"value": "EMPIRE"
} | expert | en | 165 | 165 | cipher_museum | 2.0 | public | null | null |
stager-route-320 | CASXPRYHXXYPTRXXUOGLXXER | CASXPRYHXXYPTRXXUOGLXXER | CRYPTOGRAPHY RULES | stager_route | stager_route | transposition | {
"type": "integer",
"value": 8
} | expert | en | 24 | 24 | cipher_museum | 0.2 | public | null | null |
enigma-v3-0987 | FUGURVMGXTCSHRRTWYTMKZXIKNCAUWZNQKKJBCPEJEMYIAFYRWLAJGFTRIPITCFMWVWXGWIN | FUGURVMGXTCSHRRTWYTMKZXIKNCAUWZNQKKJBCPEJEMYIAFYRWLAJGFTRIPITCFMWVWXGWIN | TWO ROADS DIVERGED IN A YELLOW WOOD AND SORRY I COULD NOT TRAVEL BOTH AND BE ONE TRAVELER | enigma | enigma | machine | {
"type": "rotor_start",
"value": "ZZA"
} | expert | en | 72 | 72 | cipher_museum | 2.0 | public | null | null |
porta-v2-0571 | XIMPTUNVNGFXHPVJXXCXWEWXLWXQTSBZLTESBOZTTIEZUFSWWCPGZDMAPAAHMHKWWZVRXFUVYZA | XIMPTUNVNGFXHPVJXXCXWEWXLWXQTSBZLTESBOZTTIEZUFSWWCPGZDMAPAAHMHKWWZVRXFUVYZA | IN THE BEGINNING GOD CREATED THE HEAVEN AND THE EARTH AND DARKNESS WAS UPON THE FACE OF DEEP | porta | porta | polyalphabetic | {
"type": "keyword",
"value": "FLORENT"
} | intermediate | en | 75 | 75 | cipher_museum | 2.0 | public | null | null |
jn25-v3-0056 | 26186 26184 26193 26188 26100 26198 26188 26198 26194 26193 26184 26195 26184 26197 26182 26184 26193 26199 26188 26193 26198 26195 26188 26197 26180 26199 26188 26194 26193 26180 26193 26183 26193 26188 26193 26184 26199 26104 26193 26188 26193 26184 26195 26184 26197 26182 26184 26193 26199 26195 26184 26197 26198 26... | 26186 26184 26193 26188 26100 26198 26188 26198 26194 26193 26184 26195 26184 26197 26182 26184 26193 26199 26188 26193 26198 26195 26188 26197 26180 26199 26188 26194 26193 26180 26193 26183 26193 26188 26193 26184 26199 26104 26193 26188 26193 26184 26195 26184 26197 26182 26184 26193 26199 26195 26184 26197 26198 26... | GENIUS IS ONE PERCENT INSPIRATION AND NINETY NINE PERCENT PERSPIRATION THOMAS EDISON NOTED | jn25 | jn25 | codebook | {
"type": "additive",
"value": "16180"
} | expert | en | 390 | 467 | cipher_museum | 2.0 | public | null | null |
red-type-a-v3-0331 | GPUIFTFOBERPXOWDOUHF | GPUIFTFOBERPXOWDOUHF | THE ALCHEMIST SUCCEEDS | red_type_a | red_type_a | machine | {
"type": "keyword",
"value": "MIKADO"
} | advanced | en | 20 | 20 | cipher_museum | 2.0 | public | null | null |
rot13-032 | ARIRE VAGREEHCG LBHE RARZL JURA UR VF ZNXVAT N ZVFGNXR | ARIRE VAGREEHCG LBHE RARZL JURA UR VF ZNXVAT N ZVFGNXR | NEVER INTERRUPT YOUR ENEMY WHEN HE IS MAKING A MISTAKE | rot13 | rot13 | substitution | {
"type": "none",
"value": null
} | beginner | en | 45 | 54 | cipher_museum | 0.2 | public | null | null |
geheimschreiber-022 | SZJXZMLTWFLVTRHEPF | SZJXZMLTWFLVTRHEPF | AWAIT FURTHER ORDERS | geheimschreiber | geheimschreiber | machine | {
"type": "seed",
"value": "STURGEON"
} | expert | en | 18 | 18 | cipher_museum | 0.2 | public | null | null |
monoalphabetic-v2-1236 | GCIOPRÉ ÉAWGCRÉ MPWROPJCRÉ KT GW HKPR SOQ HKRQ DÉMCJCQQOJR GW POUKGTRCKJ MPWJÇWCQO DO HCG QOLR | GCIOPRÉ ÉAWGCRÉ MPWROPJCRÉ KT GW HKPR SOQ HKRQ DÉMCJCQQOJR GW POUKGTRCKJ MPWJÇWCQO DO HCG QOLR | LIBERTÉ ÉGALITÉ FRATERNITÉ OU LA MORT CES MOTS DÉFINISSENT LA REVOLUTION FRANÇAISE DE MIL SEPT | monoalphabetic | monoalphabetic | substitution | {
"type": "keyword",
"value": "WISDOM"
} | beginner | en | 80 | 94 | cipher_museum | 2.0 | public | null | null |
copiale-v2-0344 | O9 L0 N1 Y0 G0 D0 C7 B8 A4 L0 S9 A3 N6 O9 O2 J0 J8 W4 N2 I2 H3 C5 H9 O2 D3 M4 F1 E0 P5 O7 M7 Y8 M7 B8 W2 O2 O0 E7 Y8 Y2 F7 J8 H9 Y8 Q1 R7 F5 J6 E0 S9 A6 H0 P3 O2 L3 I0 U8 R0 D0 S9 G2 U8 I5 V4 U6 R9 A2 D0 W5 R7 T2 O7 L0 W5 A3 V2 R0 T4 | O9 L0 N1 Y0 G0 D0 C7 B8 A4 L0 S9 A3 N6 O9 O2 J0 J8 W4 N2 I2 H3 C5 H9 O2 D3 M4 F1 E0 P5 O7 M7 Y8 M7 B8 W2 O2 O0 E7 Y8 Y2 F7 J8 H9 Y8 Q1 R7 F5 J6 E0 S9 A6 H0 P3 O2 L3 I0 U8 R0 D0 S9 G2 U8 I5 V4 U6 R9 A2 D0 W5 R7 T2 O7 L0 W5 A3 V2 R0 T4 | YOUR MISSION IF YOU CHOOSE TO ACCEPT IT IS TO EXTRACT THE AGENT FROM BEHIND ENEMY LINES TONIGHT | copiale | copiale | substitution | {
"type": "keyword",
"value": "MYSTERY"
} | advanced | en | 156 | 233 | cipher_museum | 2.0 | public | null | null |
trifid-v2-0184 | QFIOJKDEHOTHJOIOUEURABFTTECUDCNOVAYLGD+OPAGYLOABAUNRDTLRFJOZ+RIELULS | QFIOJKDEHOTHJOIOUEURABFTTECUDCNOVAYLGD+OPAGYLOABAUNRDTLRFJOZ+RIELULS | NEVER IN THE FIELD OF HUMAN CONFLICT WAS SO MUCH OWED BY SO MANY TO SO FEW BRAVE SOULS | trifid | trifid | fractionation | {
"type": "keyword",
"value": "FORTRESS"
} | advanced | en | 68 | 68 | cipher_museum | 2.0 | public | null | null |
cda-0021804 | 05718 4732 06678 6329 1580 01023 2916 05071 02574 1604 05749 5993 05749 1648 0343 1284 00325 02221 05696 2847 01273 2910 4462 00320 05090 5656 01656 6054 0988 5738 2890 00712 1586 1318 2200 01636 04773 4150 1615 06364 5669 02863 1000 5054 0372 6337 06319 01621 5676 04446 | 05718 4732 06678 6329 1580 01023 2916 05071 02574 1604 05749 5993 05749 1648 0343 1284 00325 02221 05696 2847 01273 2910 4462 00320 05090 5656 01656 6054 0988 5738 2890 00712 1586 1318 2200 01636 04773 4150 1615 06364 5669 02863 1000 5054 0372 6337 06319 01621 5676 04446 | ROUTE CIPHERS READ A GRID IN A PRESCRIBED GEOMETRIC PATTERN | zimmermann | zimmermann | null | {} | medium | en | 50 | 50 | synthetic_educational | null | null | [
"codebook_frequency",
"number_group_analysis"
] | Zimmermann Telegram code: WWI German diplomatic numeric codebook cipher. |
kl7-v2-0289 | MDKWGXLLTWXNKWDWEXKVZQKYZ | MDKWGXLLTWXNKWDWEXKVZQKYZ | SICUT PATRIBUS SIT DEUS NOBIS | kl7 | kl7 | machine | {
"type": "seed",
"value": "FREEDOM"
} | expert | en | 25 | 25 | cipher_museum | 2.0 | public | null | null |
slidex-v2-0088 | EZWXJQLFVPSWDAMUFREMLPZDJKXVRPXFBANJAOOWEVWRESALFIMLFIOVVWVOCYFJAXUFFMFIHSGHQJGC | EZWXJQLFVPSWDAMUFREMLPZDJKXVRPXFBANJAOOWEVWRESALFIMLFIOVVWVOCYFJAXUFFMFIHSGHQJGC | CLAUDE SHANNON PROVED THAT THE ONE TIME PAD ACHIEVES PERFECT SECRECY WHEN USED CORRECTLY ONCE | slidex | slidex | transposition | {
"type": "keyword",
"value": "BLETCHLEY"
} | advanced | en | 80 | 80 | cipher_museum | 2.0 | public | null | null |
cda-0013669 | 815 851 813 849 862 812 841 806 872 999 802 839 802 834 872 854 824 856 999 806 801 839 999 851 814 865 814 802 833 999 867 814 801 832 999 808 825 845 822 812 852 856 999 857 844 836 842 853 851 843 867 999 | 815 851 813 849 862 812 841 806 872 999 802 839 802 834 872 854 824 856 999 806 801 839 999 851 814 865 814 802 833 999 867 814 801 832 999 808 825 845 822 812 852 856 999 857 844 836 842 853 851 843 867 999 | FREQUENCY ANALYSIS CAN REVEAL WEAK CIPHERS TOMORROW | culper_ring | culper_ring | null | {} | medium | en | 45 | 45 | synthetic_educational | null | null | [
"codebook_frequency",
"number_range_analysis"
] | Culper Ring code: Washington's three-digit codebook numbers (800–999 range). |
argenti-v3-0201 | 37 82 83 26 17 67 32 23 59 56 71 17 12 41 75 23 44 20 77 17 67 32 28 25 12 66 18 23 68 22 82 63 26 37 77 17 65 83 66 18 20 26 23 56 32 37 82 64 89 17 12 81 72 66 18 28 77 26 37 82 41 44 83 18 20 63 67 66 28 25 32 38 72 37 82 63 77 26 66 18 36 75 23 59 77 28 44 12 81 41 37 82 63 26 77 66 18 64 16 72 71 82 37 28 25 32 66... | 37 82 83 26 17 67 32 23 59 56 71 17 12 41 75 23 44 20 77 17 67 32 28 25 12 66 18 23 68 22 82 63 26 37 77 17 65 83 66 18 20 26 23 56 32 37 82 64 89 17 12 81 72 66 18 28 77 26 37 82 41 44 83 18 20 63 67 66 28 25 32 38 72 37 82 63 77 26 66 18 36 75 23 59 77 28 44 12 81 41 37 82 63 26 77 66 18 64 16 72 71 82 37 28 25 32 66... | 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 | argenti | argenti | nomenclator | {
"type": "seed",
"value": "PAPAL"
} | expert | en | 318 | 476 | cipher_museum | 2.0 | public | null | null |
rail-fence-v3-0477 | AMSATAEETCRTYRDRERHAISOSIEWCRYEEBDAEENRSAINBDASETMDMFPITTFIOOANULOVBUJMNEERI | AMSATAEETCRTYRDRERHAISOSIEWCRYEEBDAEENRSAINBDASETMDMFPITTFIOOANULOVBUJMNEERI | AT THE BATTLE OF MIDWAY AMERICAN DIVE BOMBERS DESTROYED FOUR JAPANESE CARRIERS IN MINUTES | rail_fence | rail_fence | transposition | {
"type": "integer",
"value": 11
} | intermediate | en | 76 | 76 | cipher_museum | 2.0 | public | null | null |
vic-v2-0345 | 700837920191811931813811875885844338974591888738882948418084584323083731878472155843790921578717878858434787815843584148158488913948488187584314889487078783927833743807003818030591187889249183792091 | 700837920191811931813811875885844338974591888738882948418084584323083731878472155843790921578717878858434787815843584148158488913948488187584314889487078783927833743807003818030591187889249183792091 | ALL GAUL IS DIVIDED INTO THREE PARTS ONE OF WHICH THE BELGAE INHABIT THE AQUITANI ANOTHER AND THE THIRD THOSE WHO IN THEIR OWN LANGUAGE ARE CALLED CELTS IN OURS GAULS | vic | vic | substitution | {
"type": "keyword",
"value": "LIBERTY"
} | advanced | en | 198 | 198 | cipher_museum | 2.0 | public | null | null |
cda-0009307 | FLISNLOOTSOAISAUTGAARPELCDOESN | FLISNLOOTSOAISAUTGAARPELCDOESN | FAIL CLOSED IS A POSTURE NOT A SLOGAN | stager_route | stager_route | null | {
"cols": 5
} | medium | en | 30 | 30 | synthetic_educational | null | null | [] | |
straddling-checkerboard-v2-0256 | 34502942522200221925 | 34502942522200221925 | STORM THE BREACH | straddling_checkerboard | straddling_checkerboard | substitution | {
"type": "top_row",
"value": "RASTONICEL"
} | advanced | en | 20 | 20 | cipher_museum | 2.0 | public | null | null |
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