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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
fialka-v3-0287 | AHQWICIHRFGMRGZOAKBLKKSKFTYNSCDMULYWXEJVIIHIXAIMWVEUHZKCNHREVZMWMVMWRAOZLXEEJGGPLWMI | AHQWICIHRFGMRGZOAKBLKKSKFTYNSCDMULYWXEJVIIHIXAIMWVEUHZKCNHREVZMWMVMWRAOZLXEEJGGPLWMI | SIGNALS INTELLIGENCE OR SIGINT INVOLVES INTERCEPTION AND ANALYSIS OF ELECTRONIC COMMUNICATIONS | fialka | fialka | machine | {
"type": "seed",
"value": "SOVIET"
} | expert | en | 84 | 84 | cipher_museum | 2.0 | public | null | null |
two-square-v2-0206 | GGEZQUEESFHPDDAPVBPGLLICAODAKPERHEEGLQHEENETAFBUWEREAODDAODBCQMEGGSPHEIHPPBT | GGEZQUEESFHPDDAPVBPGLLICAODAKPERHEEGLQHEENETAFBUWEREAODDAODBCQMEGGSPHEIHPPBT | MARY QUEEN OF SCOTS WAS BEHEADED AFTER HER CIPHER LETTERS WERE DECODED BY THOMAS PHELIPPES | two_square | two_square | polygraphic | {
"key1": "LIBERTY",
"key2": "FREEDOM"
} | advanced | en | 76 | 76 | cipher_museum | 2.0 | public | null | null |
columnar-transposition-v3-0723 | AIAEDNHAWETMOWASCWADNOTECETUNIRNAMWAOSOHONEDEOOLRLHNESTGTBIDNORIAOHERSRLSSEHMFWVTDNHSNGEPODUSIYMIEVTAITIDSITSOICPTEGEHHONTETXLOLNIGHIFNNAHLSWPPWNOBDEIEOIHOSEIENTRKGITLFIA | AIAEDNHAWETMOWASCWADNOTECETUNIRNAMWAOSOHONEDEOOLRLHNESTGTBIDNORIAOHERSRLSSEHMFWVTDNHSNGEPODUSIYMIEVTAITIDSITSOICPTEGEHHONTETXLOLNIGHIFNNAHLSWPPWNOBDEIEOIHOSEIENTRKGITLFIA | SOCRATES BELIEVED THAT THE UNEXAMINED LIFE IS NOT WORTH LIVING AND THAT WISDOM BEGINS WITH THE ADMISSION OF ONES OWN IGNORANCE THIS APPROACH TO KNOWLEDGE HAS GUIDED WESTERN PHILOSOPHY FOR TWO MILLENNIA | columnar_transposition | columnar_transposition | transposition | {
"type": "keyword",
"value": "FREEDOM"
} | intermediate | en | 170 | 170 | cipher_museum | 2.0 | public | null | null |
cda-0005944 | TEOHFYOERENERSRDBAEWSHESWMIIESOSTOFFADULEHOBENETSSLSNRFIOUPEEPHRSSTSEOONTAMMVEOBITCLDTHL | TEOHFYOERENERSRDBAEWSHESWMIIESOSTOFFADULEHOBENETSSLSNRFIOUPEEPHRSSTSEOONTAMMVEOBITCLDTHL | THE BEST LESSONS SHOW WHERE THE METHOD FAILS POLYBIUS ENCODED LETTERS AS PAIRS OF NUMBERS FROM ONE TO FIVE | stager_route | stager_route | null | {
"cols": 8
} | hard | en | 88 | 88 | synthetic_educational | null | null | [
"column_count_search",
"route_pattern_search"
] | Route (Stager) cipher: write into rectangle, read via alternating column route. |
columnar-transposition-v2-0576 | IEMLDUONAELTITRSAHAHPDEUSRAEBGOTKMLEONTTTTSNVOBTINEHLOAODTTEINOFAERAB | IEMLDUONAELTITRSAHAHPDEUSRAEBGOTKMLEONTTTTSNVOBTINEHLOAODTTEINOFAERAB | IT IS BETTER TO REMAIN SILENT AND BE THOUGHT A FOOL THAN TO SPEAK AND REMOVE ALL DOUBT | columnar_transposition | columnar_transposition | transposition | {
"type": "keyword",
"value": "DRAGON"
} | intermediate | en | 69 | 69 | cipher_museum | 2.0 | public | null | null |
four-square-v3-0029 | SGAUCECMCPQTUACMNDKF | SGAUCECMCPQTUACMNDKF | THE REDCOATS ARE COMING | four_square | four_square | polygraphic | {
"key1": "PALACE",
"key2": "BATTLE"
} | advanced | en | 20 | 20 | cipher_museum | 2.0 | public | null | null |
cda-0013679 | ⟨w32⟩ ⟨a07⟩ ⟨a17⟩ ⟨w20⟩ ⟨a37⟩ ⟨w10⟩ ⟨a23⟩ ⟨w14⟩ ⟨w10⟩ ⟨w32⟩ ⟨a07⟩ ⟨w14⟩ ⟨w32⟩ ⟨a17⟩ ⟨w20⟩ ⟨a07⟩ ⟨w14⟩ ⟨w20⟩ ⟨w04⟩ ⟨w20⟩ ⟨w08⟩ ⟨w22⟩ ⟨w28⟩ ⟨a19⟩ ⟨w20⟩ ⟨w22⟩ ⟨a01⟩ ⟨w20⟩ ⟨a25⟩ ⟨a25⟩ ⟨w20⟩ ⟨a19⟩ ⟨a23⟩ ⟨a19⟩ ⟨w20⟩ ⟨w16⟩ ⟨w28⟩ ⟨w20⟩ ⟨a07⟩ ⟨w14⟩ ⟨w40⟩ ⟨a17⟩ ⟨w32⟩ ⟨w22⟩ ⟨a25⟩ ⟨a19⟩ ⟨w32⟩ ⟨a11⟩ ⟨w28⟩ ⟨a25⟩ ⟨w32⟩ ⟨w10⟩ ⟨a07⟩ ⟨a... | ⟨w32⟩ ⟨a07⟩ ⟨a17⟩ ⟨w20⟩ ⟨a37⟩ ⟨w10⟩ ⟨a23⟩ ⟨w14⟩ ⟨w10⟩ ⟨w32⟩ ⟨a07⟩ ⟨w14⟩ ⟨w32⟩ ⟨a17⟩ ⟨w20⟩ ⟨a07⟩ ⟨w14⟩ ⟨w20⟩ ⟨w04⟩ ⟨w20⟩ ⟨w08⟩ ⟨w22⟩ ⟨w28⟩ ⟨a19⟩ ⟨w20⟩ ⟨w22⟩ ⟨a01⟩ ⟨w20⟩ ⟨a25⟩ ⟨a25⟩ ⟨w20⟩ ⟨a19⟩ ⟨a23⟩ ⟨a19⟩ ⟨w20⟩ ⟨w16⟩ ⟨w28⟩ ⟨w20⟩ ⟨a07⟩ ⟨w14⟩ ⟨w40⟩ ⟨a17⟩ ⟨w32⟩ ⟨w22⟩ ⟨a25⟩ ⟨a19⟩ ⟨w32⟩ ⟨a11⟩ ⟨w28⟩ ⟨a25⟩ ⟨w32⟩ ⟨w10⟩ ⟨a07⟩ ⟨a... | INDEX OF COINCIDENCE MEASURES LETTER FREQUENCY DISTRIBUTION THE TRITHEMIUS CIPHER ADVANCES THE ALPHABET BY ONE POSITION EACH LETTER | babington | babington | null | {} | hard | en | 114 | 114 | synthetic_educational | null | null | [
"nomenclator_frequency",
"symbol_mapping"
] | Babington nomenclator: symbol tokens ⟨wNN⟩/⟨aNN⟩ used in the 1586 Babington Plot. |
cda-0009555 | OGEO AFBO ERAG GACY FVBH ZRFU BJWF GERO FBNW ATQE LBHB TENC VMER JNER GCNG VSNQ NNAQ QOFN SHYG VWAX WAU | OGEO AFBO ERAG GACY FVBH ZRFU BJWF GERO FBNW ATQE LBHB TENC VMER JNER GCNG VSNQ NNAQ QOFN SHYG VWAX WAU | A TRANSPARENT TOOL SHOULD SHOW ITS REASONING CRYPTOGRAPHY REWARDS PATIENCE AND CAREFUL THINKING | porta | porta | null | {
"key": "LIBRARY"
} | hard | en | 83 | 83 | synthetic_educational | null | null | [] | |
kl7-v3-0206 | CNRIUWVIMRJJXXNVKWLTINGCEDAGMYKXYSLPTWHDBGSFDZBVTXNNNYDORIOBTGIOIAKWMUNIOUDNHRIOBXAOPMWWCDDNQKQQMVSNMLPTNMWGEGEYLTIOGRHNDXQJSREIYWEBJHVFSJMBYBYRXHYCBCZYVYMJBSVZQZAMF | CNRIUWVIMRJJXXNVKWLTINGCEDAGMYKXYSLPTWHDBGSFDZBVTXNNNYDORIOBTGIOIAKWMUNIOUDNHRIOBXAOPMWWCDDNQKQQMVSNMLPTNMWGEGEYLTIOGRHNDXQJSREIYWEBJHVFSJMBYBYRXHYCBCZYVYMJBSVZQZAMF | 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 | kl7 | kl7 | machine | {
"type": "seed",
"value": "LIBERTY"
} | expert | en | 165 | 165 | cipher_museum | 2.0 | public | null | null |
cda-0008554 | UJTC PALF ACKK XNAA AOQZ RDSN EGKR JXPR RKMC PYKA BHON LKAW YIJJ PIDP OLKN RWRF WYNI MKSJ ZEUV CFMY NGVJ INYK EOAU TJYE MYCJ NZBA XLXF RYKF OIXZ EHRF XNA | UJTC PALF ACKK XNAA AOQZ RDSN EGKR JXPR RKMC PYKA BHON LKAW YIJJ PIDP OLKN RWRF WYNI MKSJ ZEUV CFMY NGVJ INYK EOAU TJYE MYCJ NZBA XLXF RYKF OIXZ EHRF XNA | CRYPTOGRAPHY REWARDS PATIENCE AND CAREFUL THINKING HISTORICAL CIPHERS ARE TEACHERS NOT PROTECTION THE ARCHITECTURE SHOULD MAKE MISUSE HARDER | beaufort | beaufort | null | {
"key": "WARRIOR"
} | hard | en | 123 | 123 | synthetic_educational | null | null | [] | |
enigma-v2-0208 | MQCTJDUNGLKQEDZDODTTWEBSGCEXWQADDHDQWIKPPJFSOLQQANLHYMGXSAMRMOBLCDXHCGBOQCKEDCZWB | MQCTJDUNGLKQEDZDODTTWEBSGCEXWQADDHDQWIKPPJFSOLQQANLHYMGXSAMRMOBLCDXHCGBOQCKEDCZWB | THOSE WHO CANNOT REMEMBER THE PAST ARE CONDEMNED TO REPEAT IT AS PHILOSOPHER SANTAYANA OBSERVED | enigma | enigma | machine | {
"type": "rotor_start",
"value": "DEF"
} | expert | en | 81 | 81 | cipher_museum | 2.0 | public | null | null |
kryha-v3-0299 | DBDCVBPIPXJMQRZNQGBGOBJLZLGCENLCSDCYBMBMWHUBSSJJSZXDJMAHNJDITXNUBVVFNLBIELWWXIDPVV | DBDCVBPIPXJMQRZNQGBGOBJLZLGCENLCSDCYBMBMWHUBSSJJSZXDJMAHNJDITXNUBVVFNLBIELWWXIDPVV | ZERO KNOWLEDGE PROOFS ALLOW ONE PARTY TO PROVE KNOWLEDGE WITHOUT REVEALING THE KNOWLEDGE ITSELF | kryha | kryha | machine | {
"type": "keyword",
"value": "PRAGUE"
} | expert | en | 82 | 82 | cipher_museum | 2.0 | public | null | null |
columnar-transposition-es-014 | SPAORANNA | SPAORANNA | NO PASARAN | columnar_transposition | columnar_transposition | transposition | {
"type": "keyword",
"value": "ZEBRA"
} | intermediate | es | 9 | 9 | cipher_museum | 0.2 | public | null | null |
monoalphabetic-v2-1076 | AHRQQRO VPR SDR MTPR EJ DRVPS BKP SDRY QDVHH QRR CKO VJO AHRQQRO VPR SDR MRVLRIVGRPQ VIKJC TQ | AHRQQRO VPR SDR MTPR EJ DRVPS BKP SDRY QDVHH QRR CKO VJO AHRQQRO VPR SDR MRVLRIVGRPQ VIKJC TQ | BLESSED ARE THE PURE IN HEART FOR THEY SHALL SEE GOD AND BLESSED ARE THE PEACEMAKERS AMONG US | monoalphabetic | monoalphabetic | substitution | {
"type": "keyword",
"value": "VALOR"
} | beginner | en | 76 | 93 | cipher_museum | 2.0 | public | null | null |
cda-0015971 | point exact enemy radio range enter vague issue enter where again notes daily roads exact parts roads order draft until claim issue brief incur light | point exact enemy radio range enter vague issue enter where again notes daily roads exact parts roads order draft until claim issue brief incur light | PEER REVIEW AND REPRODUCIBILITY MATTER IN RESEARCH | null_cipher | null_cipher | null | {} | hard | en | 125 | 125 | synthetic_educational | null | null | [
"acrostic_detection",
"first_letter_extraction"
] | Null/steganographic cipher: hidden message formed by first letters of words. |
kryptos-v2-0462 | SKXOVFPNMJWCIXREJWEEXXVZIIBFNMQGKAWQVFUFQPPVZMDNJUEAGKOYEYQIMFBFYDFQNKDMDDYSQDUDNEA | SKXOVFPNMJWCIXREJWEEXXVZIIBFNMQGKAWQVFUFQPPVZMDNJUEAGKOYEYQIMFBFYDFQNKDMDDYSQDUDNEA | KNOWLEDGE WITHOUT WISDOM IS A DANGEROUS THING AND WISDOM WITHOUT COURAGE IS ULTIMATELY WORTHLESS | kryptos | kryptos | polyalphabetic | {
"type": "keyword",
"value": "SANBORN"
} | advanced | en | 83 | 83 | cipher_museum | 2.0 | public | null | null |
sigaba-205 | DNRSXIMMMMOUTMM | DNRSXIMMMMOUTMM | SILENCE IS GOLDEN | sigaba | sigaba | machine | {
"type": "seed",
"value": "MUSEUM"
} | expert | en | 15 | 15 | cipher_museum | 0.2 | public | null | null |
cardano-autokey-v2-0341 | KALFBBJVTZHBCAZHMHOSKSSKAVNTXUKYIRRPTHZBFXADWSMHPQJZVVHEZDWRNPKAOWLDAVTNHMUVGBUQ | KALFBBJVTZHBCAZHMHOSKSSKAVNTXUKYIRRPTHZBFXADWSMHPQJZVVHEZDWRNPKAOWLDAVTNHMUVGBUQ | THE BABINGTON PLOT TO ASSASSINATE QUEEN ELIZABETH WAS UNCOVERED BY FRANCIS WALSINGHAM IN TIME | cardano_autokey | cardano_autokey | polyalphabetic | {
"type": "keyword",
"value": "ROME"
} | advanced | en | 80 | 80 | cipher_museum | 2.0 | public | null | null |
cda-0014081 | ABBBA ABBAB ABABA BABBA AAAAB ABAAA BAABB BAAAB AABAA ABBAA AAABA ABBAB AAABB AABAA AAABB ABABA AABAA BAABA BAABA AABAA BAAAA BAAAB AAAAA BAAAB ABBBA AAAAA ABAAA BAAAA BAAAB ABBAB AABAB ABBAA BAABB ABABB AAAAB AABAA BAAAA BAAAB AABAB BAAAA ABBAB ABABB ABBAB ABBAA AABAA BAABA ABBAB AABAB ABAAA BAABB AABAA | ABBBA ABBAB ABABA BABBA AAAAB ABAAA BAABB BAAAB AABAA ABBAA AAABA ABBAB AAABB AABAA AAABB ABABA AABAA BAABA BAABA AABAA BAAAA BAAAB AAAAA BAAAB ABBBA AAAAA ABAAA BAAAA BAAAB ABBAB AABAB ABBAA BAABB ABABB AAAAB AABAA BAAAA BAAAB AABAB BAAAA ABBAB ABABB ABBAB ABBAA AABAA BAABA ABBAB AABAB ABAAA BAABB AABAA | POLYBIUS ENCODED LETTERS AS PAIRS OF NUMBERS FROM ONE TO FIVE | bacon_cipher | bacon_cipher | null | {} | hard | en | 255 | 255 | synthetic_educational | null | null | [
"five_bit_decode",
"ab_frequency_analysis"
] | Bacon's biliteral cipher: each letter encoded as 5-bit A/B string. |
cda-0015629 | 858 821 814 999 830 801 856 825 854 832 826 999 812 870 802 836 824 839 800 857 824 842 839 999 817 824 841 811 855 999 851 812 847 814 800 859 814 811 999 858 851 825 819 851 801 838 856 999 825 839 999 807 825 845 821 814 852 858 812 870 859 999 802 841 999 801 816 815 826 839 812 999 806 825 847 821 812 851 999 801 ... | 858 821 814 999 830 801 856 825 854 832 826 999 812 870 802 836 824 839 800 857 824 842 839 999 817 824 841 811 855 999 851 812 847 814 800 859 814 811 999 858 851 825 819 851 801 838 856 999 825 839 999 807 825 845 821 814 852 858 812 870 859 999 802 841 999 801 816 815 826 839 812 999 806 825 847 821 812 851 999 801 ... | THE KASISKI EXAMINATION FINDS REPEATED TRIGRAMS IN CIPHERTEXT AN AFFINE CIPHER APPLIES A LINEAR FUNCTION TO EACH LETTER ATBASH ENCODES BY REVERSING THE ALPHABET | culper_ring | culper_ring | null | {} | hard | en | 137 | 137 | synthetic_educational | null | null | [
"codebook_frequency",
"number_range_analysis"
] | Culper Ring code: Washington's three-digit codebook numbers (800–999 range). |
bazeries-v3-0642 | TLPAVSXLTPHBVTALQIP | TLPAVSXLTPHBVTALQIP | TREACHERY IN THE COURT | bazeries | bazeries | transposition | {
"type": "integer",
"value": 71
} | advanced | en | 19 | 19 | cipher_museum | 2.0 | public | null | null |
cda-0013317 | Γ ┘· ─ ┘· K r ┘· ─ ⌐· X· X L ┘· ¬ ⌐· X· X r ⌐ K Γ· ┘· ─ ⌒ Γ· K r· L ─ r ┌· ⌒· ┐· K Γ· ┘· ─ K r· L ⌐ ┌· r r· Γ· K L r K X· ┌· L X r· ┘· X· └ Γ ┌ ⌐ ┐ L ┌ Γ· X X· X L r· ⌐ ┌· Γ L ┌· ┐· L ┌· r· ⌐ ┐· X | Γ ┘· ─ ┘· K r ┘· ─ ⌐· X· X L ┘· ¬ ⌐· X· X r ⌐ K Γ· ┘· ─ ⌒ Γ· K r· L ─ r ┌· ⌒· ┐· K Γ· ┘· ─ K r· L ⌐ ┌· r r· Γ· K L r K X· ┌· L X r· ┘· X· └ Γ ┌ ⌐ ┐ L ┌ Γ· X X· X L r· ⌐ ┌· Γ L ┌· ┐· L ┌· r· ⌐ ┐· X | DO NOT CONFUSE OBFUSCATION WITH ENCRYPTION THE ARCHITECTURE SHOULD MAKE MISUSE HARDER PERHAPS | pigpen | pigpen | null | {} | medium | en | 38 | 38 | synthetic_educational | null | null | [
"symbol_frequency",
"grid_position_decode"
] | Pigpen cipher: letters encoded as positions in tic-tac-toe and X grids. |
cda-0005266 | GSQQWKKSL DCPE N RXWZL LYLQBLBE BU WLJ XLXNKEUAU ZUP | GSQQWKKSL DCPE N RXWZL LYLQBLBE BU WLJ XLXNKEUAU ZUP | GRONSFELD USES A DIGIT SEQUENCE AS THE REPEATING KEY | trithemius | trithemius | null | {} | medium | en | 44 | 44 | synthetic_educational | null | null | [
"progressive_shift_detection",
"frequency_analysis"
] | Trithemius: progressive Caesar (shift = letter position); no key needed. |
cda-0005494 | N FGEBAT PYNVZ ARRQF FGEBAT RIVQRAPR | N FGEBAT PYNVZ ARRQF FGEBAT RIVQRAPR | A STRONG CLAIM NEEDS STRONG EVIDENCE | rot13 | rot13 | null | {
"shift": 13
} | medium | en | 31 | 31 | synthetic_educational | null | null | [
"brute_force_26",
"self_inverse_check"
] | ROT-13 is Caesar with shift 13 — it is its own inverse. |
cda-0008335 | KESYH ESKLN ROHWT NYEUR FEBTA MXLSL CASIP ECROW OE | KESYH ESKLN ROHWT NYEUR FEBTA MXLSL CASIP ECROW OE | BRUTE FORCE WORKS ONLY WHEN THE KEY SPACE IS SMALL | double_transposition | double_transposition | null | {
"key1": "SECURE",
"key2": "FREEDOM"
} | medium | en | 42 | 42 | synthetic_educational | null | null | [] | |
culper-ring-v2-0062 | 100 998 811 814 817 803 999 106 998 812 824 999 998 818 807 804 815 807 804 817 803 999 998 808 999 998 818 807 800 811 811 999 118 180 998 807 804 999 998 812 800 810 804 819 807 999 140 998 811 808 804 999 998 803 814 822 813 999 104 998 806 817 804 804 813 999 998 815 800 818 819 820 817 804 818 999 114 998 818 819 ... | 100 998 811 814 817 803 999 106 998 812 824 999 998 818 807 804 815 807 804 817 803 999 998 808 999 998 818 807 800 811 811 999 118 180 998 807 804 999 998 812 800 810 804 819 807 999 140 998 811 808 804 999 998 803 814 822 813 999 104 998 806 817 804 804 813 999 998 815 800 818 819 820 817 804 818 999 114 998 818 819 ... | THE LORD IS MY SHEPHERD I SHALL NOT WANT HE MAKETH ME LIE DOWN IN GREEN PASTURES BY STILL WATERS | culper_ring | culper_ring | codebook | {
"type": "none",
"value": null
} | expert | en | 276 | 367 | cipher_museum | 2.0 | public | null | null |
sigaba-v3-0042 | DJIKZHKJOP | DJIKZHKJOP | DOT DASH DOT | sigaba | sigaba | machine | {
"type": "seed",
"value": "ECMMARK"
} | expert | en | 10 | 10 | cipher_museum | 2.0 | public | null | null |
fractionated-morse-v3-0012 | HUASDASOHX | HUASDASOHX | DEUS VULT | fractionated_morse | fractionated_morse | fractionation | {
"type": "keyword",
"value": "PALACE"
} | advanced | en | 10 | 10 | cipher_museum | 2.0 | public | null | null |
straddling-checkerboard-v2-0148 | 2217312223942221347172238 | 2217312223942221347172238 | DIVIDE AND CONQUER | straddling_checkerboard | straddling_checkerboard | substitution | {
"type": "top_row",
"value": "LIONSTRACE"
} | advanced | en | 25 | 25 | cipher_museum | 2.0 | public | null | null |
fialka-v2-0256 | ABRIVHBBTHGIIO | ABRIVHBBTHGIIO | STORM THE BREACH | fialka | fialka | machine | {
"type": "seed",
"value": "SOVIET"
} | expert | en | 14 | 14 | cipher_museum | 2.0 | public | null | null |
trifid-v2-0495 | FCGSGDAQBVQRUG+UU+ZNMCC+ZF+HDWIDUYICGECVRCXOKNEARJGKMADIJZHCUUCXVRAAJWECENJAIRWSNF+OWSU+WNEJFJXKTFJNCDISYROFJXKCEKVFLHDZIFUYJLWUOPRFFAMBEDMMUIBWCFMBZL+QDBKCBTAKBFC+GEGCMZHEIGNDFII | FCGSGDAQBVQRUG+UU+ZNMCC+ZF+HDWIDUYICGECVRCXOKNEARJGKMADIJZHCUUCXVRAAJWECENJAIRWSNF+OWSU+WNEJFJXKTFJNCDISYROFJXKCEKVFLHDZIFUYJLWUOPRFFAMBEDMMUIBWCFMBZL+QDBKCBTAKBFC+GEGCMZHEIGNDFII | FOR I AM PERSUADED THAT NEITHER DEATH NOR LIFE NOR ANGELS NOR PRINCIPALITIES NOR POWERS NOR THINGS PRESENT NOR THINGS TO COME NOR HEIGHT NOR DEPTH NOR ANY OTHER CREATURE SHALL BE ABLE TO SEPARATE US FROM THE LOVE OF GOD | trifid | trifid | fractionation | {
"type": "keyword",
"value": "FREEDOM"
} | advanced | en | 179 | 179 | cipher_museum | 2.0 | public | null | null |
adfgx-v2-0500 | FDXADAXAXFGXDAXGAXDAFDGGAA | FDXADAXAXFGXDAXGAXDAFDGGAA | E PLURIBUS UNUM | adfgx | adfgx | fractionation | {
"polybius": "WISDOM",
"columnar": "COURAGE"
} | advanced | en | 26 | 26 | cipher_museum | 2.0 | public | null | null |
scytale-v2-0749 | TYTECHEIEISHSHPLNOOVSNETOEETETDBEECNHDCHOOHERRDITATRILFOSEYBPCSOESOWSAASYHRFRTTGIENKYAEYOESOYTWDTSCRPUVXRISHTHTUETNEXYSBOHEENRADAXOAEMOMMNANALXFBTASFDIPAMIXCAWKEOENALETXRTEEWRVGTYTSX | TYTECHEIEISHSHPLNOOVSNETOEETETDBEECNHDCHOOHERRDITATRILFOSEYBPCSOESOWSAASYHRFRTTGIENKYAEYOESOYTWDTSCRPUVXRISHTHTUETNEXYSBOHEENRADAXOAEMOMMNANALXFBTASFDIPAMIXCAWKEOENALETXRTEEWRVGTYTSX | 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 | scytale | scytale | transposition | {
"type": "integer",
"value": 13
} | intermediate | en | 182 | 182 | cipher_museum | 2.0 | public | null | null |
cda-0017274 | ┐· ⌐ K K L ┌· ─ ⌒ ┘· ┌· Γ X r· L └ ┐· ¬ ┌· L ⌐ ┐ ┌ ┘· ─ ┘· ⌐ └ ┐· r· ⌐ ¬ L K Γ· r X X· ¬ X K Γ· K X· K Γ· ┘· ─ ┐· X· ¬ └ Γ· r Γ· ─ ⌐· ┌· ⌐ X K ┌· X· r K X· ┌· L Γ L X L ┌· K· L X r ⌐ ┌· L ⌐· X· └ Γ L X Γ· ¬· ─ K r· L K· Γ· ¬· L ─ L ┌· L r Γ· ┐· r· L ┌· X· X L X ⌐ ┌· L ┐· L ⌐ K Γ· ─ ¬· ┐ L ⌒· ⌒ ┘· ┌· Γ | ┐· ⌐ K K L ┌· ─ ⌒ ┘· ┌· Γ X r· L └ ┐· ¬ ┌· L ⌐ ┐ ┌ ┘· ─ ┘· ⌐ └ ┐· r· ⌐ ¬ L K Γ· r X X· ¬ X K Γ· K X· K Γ· ┘· ─ ┐· X· ¬ └ Γ· r Γ· ─ ⌐· ┌· ⌐ X K ┌· X· r K X· ┌· L Γ L X L ┌· K· L X r ⌐ ┌· L ⌐· X· └ Γ L X Γ· ¬· ─ K r· L K· Γ· ¬· L ─ L ┌· L r Γ· ┐· r· L ┌· X· X L X ⌐ ┌· L ┐· L ⌐ K Γ· ─ ¬· ┐ L ⌒· ⌒ ┘· ┌· Γ | PATTERN WORDS HELP BREAK MONOALPHABETIC SUBSTITUTION PUBLIC INFRASTRUCTURE DESERVES CAREFUL DESIGN THE VIGENERE CIPHER USES A REPEATING KEYWORD | pigpen | pigpen | null | {} | medium | en | 56 | 56 | synthetic_educational | null | null | [
"symbol_frequency",
"grid_position_decode"
] | Pigpen cipher: letters encoded as positions in tic-tac-toe and X grids. |
alberti-disk-060 | XKZJOCRCIYOTMHMNHUWMZLTVATVQJOIGNHSYEKXQZWDDPJMJTSBJMVOIVJPPXWVJPGZPMONEGPTDFVBLSICZSBXMKYAYCTBHCXQKIYQDYTLFEUGLMQLYKUEOXLAPQLHDRZVFFYYPSNIWKXC | XKZJOCRCIYOTMHMNHUWMZLTVATVQJOIGNHSYEKXQZWDDPJMJTSBJMVOIVJPPXWVJPGZPMONEGPTDFVBLSICZSBXMKYAYCTBHCXQKIYQDYTLFEUGLMQLYKUEOXLAPQLHDRZVFFYYPSNIWKXC | CRYPTANALYSIS IS THE ART OF BREAKING CODES WITHOUT THE KEY AND IT HAS BEEN PRACTICED FOR AS LONG AS THERE HAVE BEEN CODES TO BREAK THE HISTORY OF CRYPTOLOGY IS A BATTLE OF WITS | alberti_disk | alberti_disk | disk | {
"type": "integer",
"value": 3
} | expert | en | 143 | 143 | cipher_museum | 0.2 | public | null | null |
sigaba-v2-0329 | AMHVRMKSHAWVCQLKXQWUWTJSCHBPOTXUVIHLLHMPKYRANSDVFZZBOFDYJWVGTVVQCMMWODZXZHNQI | AMHVRMKSHAWVCQLKXQWUWTJSCHBPOTXUVIHLLHMPKYRANSDVFZZBOFDYJWVGTVVQCMMWODZXZHNQI | SUPPLY LINES HAVE BEEN CUT RATIONS FOR THREE DAYS ONLY AWAIT RESUPPLY OR BREAK THROUGH LINES | sigaba | sigaba | machine | {
"type": "seed",
"value": "FREEDOM"
} | expert | en | 77 | 77 | cipher_museum | 2.0 | public | null | null |
cda-0022107 | HVXFIRGB XOZRNH HSLFOW YV GVHGVW FMWVI HXIFGRMB GSV GIRGSVNRFH XRKSVI ZWEZMXVH GSV ZOKSZYVG YB LMV KLHRGRLM VZXS OVGGVI | HVXFIRGB XOZRNH HSLFOW YV GVHGVW FMWVI HXIFGRMB GSV GIRGSVNRFH XRKSVI ZWEZMXVH GSV ZOKSZYVG YB LMV KLHRGRLM VZXS OVGGVI | SECURITY CLAIMS SHOULD BE TESTED UNDER SCRUTINY THE TRITHEMIUS CIPHER ADVANCES THE ALPHABET BY ONE POSITION EACH LETTER | atbash | atbash | null | {} | hard | en | 102 | 102 | synthetic_educational | null | null | [
"self_inverse_check",
"frequency_analysis"
] | Atbash maps A↔Z, B↔Y, … and is its own inverse. |
kl7-v2-0257 | KWBXQSGELAUUOVN | KWBXQSGELAUUOVN | CAVALRY ADVANCES | kl7 | kl7 | machine | {
"type": "seed",
"value": "FREEDOM"
} | expert | en | 15 | 15 | cipher_museum | 2.0 | public | null | null |
bazeries-v3-0633 | HTLLTNPHQSVISMTL | HTLLTNPHQSVISMTL | RENDER UNTO CAESAR | bazeries | bazeries | transposition | {
"type": "integer",
"value": 71
} | advanced | en | 16 | 16 | cipher_museum | 2.0 | public | null | null |
cardano-autokey-v3-0199 | YALERDKUETWNTFGKLALHHPLWWRVVZDZVKHBVONATTXPPZZRBQNZQMDALQQRJETWNCRIPMBYJRALMZNAEPDBFSNQWAYVIHDYQGTWRTBWBFEMRTJYFINXWSNQRPKNGVBDZWOETWMFHLALKZJVNXHWHQQAYMNQHVJSTMALGTFGKAVT | YALERDKUETWNTFGKLALHHPLWWRVVZDZVKHBVONATTXPPZZRBQNZQMDALQQRJETWNCRIPMBYJRALMZNAEPDBFSNQWAYVIHDYQGTWRTBWBFEMRTJYFINXWSNQRPKNGVBDZWOETWMFHLALKZJVNXHWHQQAYMNQHVJSTMALGTFGKAVT | THE ARMY WILL CROSS THE DELAWARE RIVER TONIGHT AT ELEVEN OCLOCK THE MEN WILL CARRY ONLY THEIR WEAPONS AND THREE DAYS OF RATIONS MARCH ROUTES AND OBJECTIVES WILL BE DISTRIBUTED TO COMMANDERS AT THE CROSSING | cardano_autokey | cardano_autokey | polyalphabetic | {
"type": "keyword",
"value": "FLORENCE"
} | advanced | en | 171 | 171 | cipher_museum | 2.0 | public | null | null |
nihilist-v2-0026 | 53 27 59 55 67 50 66 54 55 79 65 37 36 54 66 86 67 | 53 27 59 55 67 50 66 54 55 79 65 37 36 54 66 86 67 | KEEP YOUR POWDER DRY | nihilist | nihilist | fractionation | {
"polybius": "PALACE",
"keyword": "BATTLE"
} | advanced | en | 34 | 50 | cipher_museum | 2.0 | public | null | null |
typex-085 | BCXOKKBFWVXFFFR | BCXOKKBFWVXFFFR | SILENCE IS GOLDEN | typex | typex | machine | {
"type": "keyword",
"value": "BLETCHLEY"
} | expert | en | 15 | 15 | cipher_museum | 0.2 | public | null | null |
cda-0004526 | FBKOG QUZMM SDMCC HJLJX HJPXQ KOHCQ | FBKOG QUZMM SDMCC HJLJX HJPXQ KOHCQ | FAIL CLOSED IS A POSTURE NOT A SLOGAN | trithemius | trithemius | null | {} | medium | en | 30 | 30 | synthetic_educational | null | null | [
"progressive_shift_detection",
"frequency_analysis"
] | Trithemius: progressive Caesar (shift = letter position); no key needed. |
hist-babington-001 | 82 61 91 73 44 91 93 32 81 92 42 54 74 31 73 43 81 92 73 33 43 33 91 55 44 21 93 93 51 51 33 54 83 93 22 44 21 33 44 | 82 61 91 73 44 91 93 32 81 92 42 54 74 31 73 43 81 92 73 33 43 33 91 55 44 21 93 93 51 51 33 54 83 93 22 44 21 33 44 | PROCEED WITH THE PLAN SIX GENTLEMEN ARE READY TO ACT | babington | babington | nomenclator | {
"type": "seed",
"value": "BABINGTON",
"label": "Codebook seed"
} | expert | en | 78 | 116 | cipher_museum | 0.2 | public | null | null |
adfgx-v3-0073 | DGXGXGDXAXXXDDGFXFGFGFFDXXGAGFGAFFDDAGAXAAGFFGGAGADXADAFGDGDFXDDGFADFDFXXAAFFGFFGAGXAFDDGGFXFGAGFXDDGADAFDFAFXAFAFDFFFAFDAGXDFAFDGGGXXDFGXXXXAXDXFXD | DGXGXGDXAXXXDDGFXFGFGFFDXXGAGFGAFFDDAGAXAAGFFGGAGADXADAFGDGDFXDDGFADFDFXXAAFFGFFGAGXAFDDGGFXFGAGFXDDGADAFDFAFXAFAFDFFFAFDAGXDFAFDGGGXXDFGXXXXAXDXFXD | WHAT DOES IT PROFIT A MAN TO GAIN THE WHOLE WORLD AND YET LOSE HIS OWN IMMORTAL SOUL FOREVER | adfgx | adfgx | fractionation | {
"polybius": "PALACE",
"columnar": "BATTLE"
} | advanced | en | 148 | 148 | cipher_museum | 2.0 | public | null | null |
tap-code-v2-0034 | .... .... ... .... .... .. ... ..... . ..... . .... ... .... . . ..... .. . . ..... .... . . ... . ... . .. ... . . ... ... . .... .... ... . .. .... .. . . . ... . ..... | .... .... ... .... .... .. ... ..... . ..... . .... ... .... . . ..... .. . . ..... .... . . ... . ... . .. ... . . ... ... . .... .... ... . .. .... .. . . . ... . ..... | TORPEDO AWAY ALL HANDS BRACE | tap_code | tap_code | substitution | {
"type": "none",
"value": null
} | beginner | en | 123 | 216 | cipher_museum | 2.0 | public | null | null |
m94-v2-0002 | NFOSXGMCOGOBUFOBMVPVDBC | NFOSXGMCOGOBUFOBMVPVDBC | CARTHAGE MUST BE DESTROYED | m94 | m94 | machine | {
"type": "seed",
"value": "ARMY"
} | expert | en | 23 | 23 | cipher_museum | 2.0 | public | null | null |
caesar-v2-1834 | OSMRF RFC PYTCL LCTCPKMPC RFC ZGPB QYR ML RFC ZSQR MD NYJJYQ HSQR YZMTC KW AFYKZCP BMMP | OSMRF RFC PYTCL LCTCPKMPC RFC ZGPB QYR ML RFC ZSQR MD NYJJYQ HSQR YZMTC KW AFYKZCP BMMP | QUOTH THE RAVEN NEVERMORE THE BIRD SAT ON THE BUST OF PALLAS JUST ABOVE MY CHAMBER DOOR | caesar | caesar | substitution | {
"type": "shift",
"value": 24
} | beginner | en | 71 | 87 | cipher_museum | 2.0 | public | null | null |
geez-monastic-v3-0216 | UFMZMYWUMAMIQMMZ | UFMZMYWUMAMIQMMZ | THE SENATE DECREES | geez_monastic | geez_monastic | substitution | {
"type": "keyword",
"value": "LALIBELA"
} | advanced | en | 16 | 16 | cipher_museum | 2.0 | public | null | null |
trifid-v3-0219 | YFJZTLD+HPLAFAMIIWA | YFJZTLD+HPLAFAMIIWA | AVE MARIA GRATIA PLENA | trifid | trifid | fractionation | {
"type": "keyword",
"value": "LIBERTY"
} | advanced | en | 19 | 19 | cipher_museum | 2.0 | public | null | null |
cda-0017901 | sheedy qokal choldaiin lkaiin daral shal qotedy qotedy aiiin shal daiin chor chedal okedy shal otaiin sharal otain dal qotedy okain ctaiin chedy lkaiin qotedy kaiiin okeedy sharal shaiin shor | sheedy qokal choldaiin lkaiin daral shal qotedy qotedy aiiin shal daiin chor chedal okedy shal otaiin sharal otain dal qotedy okain ctaiin chedy lkaiin qotedy kaiiin okeedy sharal shaiin shor | SECURITY CLAIMS SHOULD BE TESTED UNDER SCRUTINY HILL CIPHER USES LINEAR ALGEBRA TO ENCRYPT BLOCKS OF LETTERS | voynich_render | voynich_render | null | {} | hard | en | 162 | 162 | synthetic_educational | null | null | [
"statistical_analysis",
"unsolved"
] | Voynich manuscript: undeciphered 15th-century script; pseudo-syllabic output. |
fialka-v2-0357 | OISIGASWMCRZCMTDYNKSZKJNNMYNMLZQEQIOVYLDKBWFRLIWUTITGYWXPIHCKDMRBDXACACJLLQISTHPRACC | OISIGASWMCRZCMTDYNKSZKJNNMYNMLZQEQIOVYLDKBWFRLIWUTITGYWXPIHCKDMRBDXACACJLLQISTHPRACC | THE REGIMENT WILL HOLD ITS POSITION UNTIL REINFORCEMENTS ARRIVE FROM THE EASTERN COMMAND POST HERE | fialka | fialka | machine | {
"type": "seed",
"value": "SOVIET"
} | expert | en | 84 | 84 | cipher_museum | 2.0 | public | null | null |
zimmermann-031 | 99999 90022 90004 99998 99999 90007 90014 90011 90003 99998 00092 99999 90019 90017 90020 90019 90007 90018 99998 00003 00012 99999 90018 90004 90011 90005 99998 99999 90004 90021 90008 90003 90004 90013 90019 99998 00007 00030 99999 90012 90004 90013 99998 00015 99999 90002 90017 90004 90000 90019 90004 90003 99998 99... | 99999 90022 90004 99998 99999 90007 90014 90011 90003 99998 00092 99999 90019 90017 90020 90019 90007 90018 99998 00003 00012 99999 90018 90004 90011 90005 99998 99999 90004 90021 90008 90003 90004 90013 90019 99998 00007 00030 99999 90012 90004 90013 99998 00015 99999 90002 90017 90004 90000 90019 90004 90003 99998 99... | WE HOLD THESE TRUTHS TO BE SELF EVIDENT THAT ALL MEN ARE CREATED EQUAL | zimmermann | zimmermann | codebook | {
"type": "none",
"value": null
} | expert | en | 300 | 359 | cipher_museum | 0.2 | public | null | null |
bifid-de-009 | RZNHBCRDHWIRRYUDOVVDBRLUXDRNT | RZNHBCRDHWIRRYUDOVVDBRLUXDRNT | DEUTSCHLAND UBER ALLES IN DER WELT | bifid | bifid | fractionation | {
"type": "keyword",
"value": "KEYWORD"
} | advanced | de | 29 | 29 | cipher_museum | 0.2 | public | null | null |
wheatstone-v2-0026 | CRRKXJSNKJVGRNGNX | CRRKXJSNKJVGRNGNX | KEEP YOUR POWDER DRY | wheatstone | wheatstone | polygraphic | {
"type": "keyword",
"value": "TELEGRAPHY"
} | advanced | en | 17 | 17 | cipher_museum | 2.0 | public | null | null |
alberti-disk-v2-0026 | HEEQYQNLPKBVUMFMD | HEEQYQNLPKBVUMFMD | KEEP YOUR POWDER DRY | alberti_disk | alberti_disk | disk | {
"type": "integer",
"value": 4
} | expert | en | 17 | 17 | cipher_museum | 2.0 | public | null | null |
cda-0015479 | 18.48.7 20.30.2 1.42.15 5.39.11 7.48.7 11.1.2 19.34.9 5.40.13 9.41.7 1.8.4 17.18.8 7.36.6 13.50.9 8.39.10 2.45.9 5.27.9 18.38.15 13.5.11 13.18.12 6.45.11 3.37.1 20.16.10 4.18.9 9.47.1 20.21.5 3.10.7 4.19.10 10.29.15 13.10.8 7.18.10 4.22.11 4.2.12 19.19.2 2.23.13 19.48.7 13.3.7 6.39.13 3.21.2 2.28.5 10.41.13 15.27.8 20.... | 18.48.7 20.30.2 1.42.15 5.39.11 7.48.7 11.1.2 19.34.9 5.40.13 9.41.7 1.8.4 17.18.8 7.36.6 13.50.9 8.39.10 2.45.9 5.27.9 18.38.15 13.5.11 13.18.12 6.45.11 3.37.1 20.16.10 4.18.9 9.47.1 20.21.5 3.10.7 4.19.10 10.29.15 13.10.8 7.18.10 4.22.11 4.2.12 19.19.2 2.23.13 19.48.7 13.3.7 6.39.13 3.21.2 2.28.5 10.41.13 15.27.8 20.... | HISTORICAL CIPHERS ARE TEACHERS NOT PROTECTION DIGRAPH AND TRIGRAPH FREQUENCIES EXPOSE SIMPLE CIPHERS ALWAYS | book_cipher | book_cipher | null | {} | hard | en | 95 | 95 | synthetic_educational | null | null | [
"book_cipher_attack",
"triple_index_search"
] | Book cipher: coordinates (page.line.word) referencing a shared document. |
cda-0010583 | AEOTN GSUNT RTLRX XEDTA NOSAX XSHOS PLOOX XNWSA RHIIX | AEOTN GSUNT RTLRX XEDTA NOSAX XSHOS PLOOX XNWSA RHIIX | A TRANSPARENT TOOL SHOULD SHOW ITS REASONING | stager_route | stager_route | null | {
"cols": 9
} | medium | en | 45 | 45 | synthetic_educational | null | null | [] | |
cda-0014299 | ⟨w10⟩ ⟨a13⟩ ⟨w20⟩ ⟨a07⟩ ⟨w22⟩ ⟨w10⟩ ⟨w28⟩ ⟨a19⟩ ⟨w14⟩ ⟨w20⟩ ⟨a25⟩ ⟨w10⟩ ⟨w10⟩ ⟨a01⟩ ⟨w22⟩ ⟨w08⟩ ⟨a01⟩ ⟨a01⟩ ⟨w10⟩ ⟨w34⟩ ⟨w32⟩ ⟨a07⟩ ⟨a17⟩ ⟨w20⟩ ⟨a13⟩ ⟨w20⟩ ⟨a07⟩ ⟨a17⟩ ⟨w20⟩ ⟨a07⟩ ⟨a25⟩ ⟨a31⟩ ⟨w20⟩ ⟨a19⟩ ⟨w32⟩ ⟨a23⟩ ⟨w32⟩ ⟨w14⟩ ⟨w08⟩ ⟨a25⟩ ⟨w32⟩ ⟨w10⟩ ⟨a07⟩ ⟨a17⟩ ⟨w10⟩ ⟨w28⟩ ⟨a11⟩ ⟨a01⟩ ⟨w20⟩ ⟨a25⟩ ⟨a19⟩ ⟨w08⟩ ⟨a07⟩ ⟨w... | ⟨w10⟩ ⟨a13⟩ ⟨w20⟩ ⟨a07⟩ ⟨w22⟩ ⟨w10⟩ ⟨w28⟩ ⟨a19⟩ ⟨w14⟩ ⟨w20⟩ ⟨a25⟩ ⟨w10⟩ ⟨w10⟩ ⟨a01⟩ ⟨w22⟩ ⟨w08⟩ ⟨a01⟩ ⟨a01⟩ ⟨w10⟩ ⟨w34⟩ ⟨w32⟩ ⟨a07⟩ ⟨a17⟩ ⟨w20⟩ ⟨a13⟩ ⟨w20⟩ ⟨a07⟩ ⟨a17⟩ ⟨w20⟩ ⟨a07⟩ ⟨a25⟩ ⟨a31⟩ ⟨w20⟩ ⟨a19⟩ ⟨w32⟩ ⟨a23⟩ ⟨w32⟩ ⟨w14⟩ ⟨w08⟩ ⟨a25⟩ ⟨w32⟩ ⟨w10⟩ ⟨a07⟩ ⟨a17⟩ ⟨w10⟩ ⟨w28⟩ ⟨a11⟩ ⟨a01⟩ ⟨w20⟩ ⟨a25⟩ ⟨a19⟩ ⟨w08⟩ ⟨a07⟩ ⟨w... | OPEN SOURCE TOOLS ALLOW INDEPENDENT VERIFICATION DOUBLE TRANSPOSITION APPLIES COLUMNAR ENCRYPTION TWICE POLYALPHABETIC CIPHERS USE MULTIPLE ALPHABET SHIFTS | babington | babington | null | {} | hard | en | 138 | 138 | synthetic_educational | null | null | [
"nomenclator_frequency",
"symbol_mapping"
] | Babington nomenclator: symbol tokens ⟨wNN⟩/⟨aNN⟩ used in the 1586 Babington Plot. |
caesar-es-048 | RA RY CEVAPVCVB REN RY IREOB L RY IREOB REN PBA QVBF | RA RY CEVAPVCVB REN RY IREOB L RY IREOB REN PBA QVBF | EN EL PRINCIPIO ERA EL VERBO Y EL VERBO ERA CON DIOS | caesar | caesar | substitution | {
"type": "shift",
"value": 13
} | beginner | es | 41 | 52 | cipher_museum | 0.2 | public | null | null |
purple-v2-0207 | QUITCAARRINTVULKZGYEWBMIICWMJZAZURXTWQWOAPAWBBDBGSWLEHHNUCRGYRCMHFGJSAKFYTOGPBJGJ | QUITCAARRINTVULKZGYEWBMIICWMJZAZURXTWQWOAPAWBBDBGSWLEHHNUCRGYRCMHFGJSAKFYTOGPBJGJ | OBSERVATION EXPERIMENT AND REASON ARE THE THREE PILLARS OF ALL SCIENTIFIC INQUIRY AND PROGRESS | purple | purple | machine | {
"type": "seed",
"value": "YAMAMOTO"
} | expert | en | 81 | 81 | cipher_museum | 2.0 | public | null | null |
double-transposition-v3-0469 | JFNBRTHAITVBGCHRAYMFTSTOSELAEEIUHHODOIEOHEMIOJEOUHAAHKPNNTRDYONAIVSTEGONE | JFNBRTHAITVBGCHRAYMFTSTOSELAEEIUHHODOIEOHEMIOJEOUHAAHKPNNTRDYONAIVSTEGONE | I HAVE NOT YET BEGUN TO FIGHT SAID JOHN PAUL JONES AS THE BONHOMME RICHARD TOOK HEAVY FIRE | double_transposition | double_transposition | transposition | {
"key1": "WISDOM",
"key2": "COURAGE"
} | advanced | en | 73 | 73 | cipher_museum | 2.0 | public | null | null |
cda-0017467 | THEEZ IGMAZ ACHIN EUSEX ROTOZ STOCR EATEA POLYZ LPHAB ETICC IPHER | THEEZ IGMAZ ACHIN EUSEX ROTOZ STOCR EATEA POLYZ LPHAB ETICC IPHER | THE ENIGMA MACHINE USED ROTORS TO CREATE A POLYALPHABETIC CIPHER | commercial_code | commercial_code | null | {} | medium | en | 55 | 55 | synthetic_educational | null | null | [
"codebook_frequency",
"five_letter_group_analysis"
] | Commercial code: five-letter groups from a codebook, often ending in X or Z. |
diana-v2-0189 | NBNWUXTEEQHEXSLLIORPIZIEJBWFSUAVAIXFEGKUNSLPLGBMHXLNBEPDOUAKQTLHEROPLHBHMV | NBNWUXTEEQHEXSLLIORPIZIEJBWFSUAVAIXFEGKUNSLPLGBMHXLNBEPDOUAKQTLHEROPLHBHMV | FOR GOD SO LOVED THE WORLD THAT HE GAVE HIS ONLY SON THAT WHOEVER BELIEVES SHALL NOT PERISH | diana | diana | polyalphabetic | {
"type": "keyword",
"value": "SPECIAL"
} | intermediate | en | 74 | 74 | cipher_museum | 2.0 | public | null | null |
cda-0021689 | 22 34 34 14 15 14 45 13 11 44 24 34 33 11 31 44 34 34 31 43 15 53 35 31 11 24 33 44 23 15 24 42 31 24 32 24 44 43 35 34 31 54 12 24 45 43 15 33 13 34 14 15 14 31 15 44 44 15 42 43 11 43 35 11 24 42 43 34 21 33 45 32 12 15 42 43 21 42 34 32 34 33 15 44 34 21 24 51 15 44 23 15 14 15 44 15 13 44 24 51 15 43 44 45 14 24 15... | 22 34 34 14 15 14 45 13 11 44 24 34 33 11 31 44 34 34 31 43 15 53 35 31 11 24 33 44 23 15 24 42 31 24 32 24 44 43 35 34 31 54 12 24 45 43 15 33 13 34 14 15 14 31 15 44 44 15 42 43 11 43 35 11 24 42 43 34 21 33 45 32 12 15 42 43 21 42 34 32 34 33 15 44 34 21 24 51 15 44 23 15 14 15 44 15 13 44 24 51 15 43 44 45 14 24 15... | GOOD EDUCATIONAL TOOLS EXPLAIN THEIR LIMITS POLYBIUS ENCODED LETTERS AS PAIRS OF NUMBERS FROM ONE TO FIVE THE DETECTIVE STUDIES PATTERNS BEFORE MAKING CLAIMS A STRONG CLAIM NEEDS STRONG EVIDENCE | polybius | polybius | null | {} | hard | en | 165 | 165 | synthetic_educational | null | null | [
"pair_decode",
"frequency_analysis"
] | Polybius square: 5×5 grid maps letters to two-digit row-column pairs. |
cda-0016884 | CRYPX OGRAP HYREZ ARDSZ ATIEN CEAND CAREX ULTHX NKING PATTE RNWOX DSHEZ PBREA KMONO ALPHX BETIC SUBST ITUTI ONENT ROPYX EASUR ESUNC ERTAZ NTYIN ADIST RIBUT IONEC | CRYPX OGRAP HYREZ ARDSZ ATIEN CEAND CAREX ULTHX NKING PATTE RNWOX DSHEZ PBREA KMONO ALPHX BETIC SUBST ITUTI ONENT ROPYX EASUR ESUNC ERTAZ NTYIN ADIST RIBUT IONEC | CRYPTOGRAPHY REWARDS PATIENCE AND CAREFUL THINKING PATTERN WORDS HELP BREAK MONOALPHABETIC SUBSTITUTION ENTROPY MEASURES UNCERTAINTY IN A DISTRIBUTION | commercial_code | commercial_code | null | {} | hard | en | 135 | 135 | synthetic_educational | null | null | [
"codebook_frequency",
"five_letter_group_analysis"
] | Commercial code: five-letter groups from a codebook, often ending in X or Z. |
rail-fence-v3-0432 | ARCHESRLSLTAOWTEH | ARCHESRLSLTAOWTEH | ARCHERS TO THE WALLS | rail_fence | rail_fence | transposition | {
"type": "integer",
"value": 11
} | intermediate | en | 17 | 17 | cipher_museum | 2.0 | public | null | null |
kryptos-v3-0206 | UUTOXTJXEWQDHPVWTVUNPVYSRUIATMWRYFSOMSHYMSYGWNKKGDEBZSQQSKPNVWSOMWDYTSSMWRKVUUYQISTCMHYXUJDFVDWUZGXEXOSQDVZRUYWAMMFQJKIYBEQDGEVYDWRJBVEAXYWHVBWVOMUTMPLOVZVBDWPJPYPTH | UUTOXTJXEWQDHPVWTVUNPVYSRUIATMWRYFSOMSHYMSYGWNKKGDEBZSQQSKPNVWSOMWDYTSSMWRKVUUYQISTCMHYXUJDFVDWUZGXEXOSQDVZRUYWAMMFQJKIYBEQDGEVYDWRJBVEAXYWHVBWVOMUTMPLOVZVBDWPJPYPTH | 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 | kryptos | kryptos | polyalphabetic | {
"type": "keyword",
"value": "LANGLEY"
} | advanced | en | 165 | 165 | cipher_museum | 2.0 | public | null | null |
cda-0021326 | 6321 02607 01607 01972 4760 06657 05705 06040 05343 06671 0340 5710 1583 01023 02873 05083 02555 1633 5744 06633 06025 01646 6039 06330 7261 04786 3472 01590 07876 07280 04785 05714 1309 5043 04726 03805 7919 0669 02894 06643 6052 06048 5341 6617 00333 05657 01664 06052 6340 02609 1593 06351 5675 02865 06365 02549 1576... | 6321 02607 01607 01972 4760 06657 05705 06040 05343 06671 0340 5710 1583 01023 02873 05083 02555 1633 5744 06633 06025 01646 6039 06330 7261 04786 3472 01590 07876 07280 04785 05714 1309 5043 04726 03805 7919 0669 02894 06643 6052 06048 5341 6617 00333 05657 01664 06052 6340 02609 1593 06351 5675 02865 06365 02549 1576... | THE FOUR SQUARE CIPHER USES TWO KEYWORD POLYBIUS SQUARES THE TRITHEMIUS CIPHER ADVANCES THE ALPHABET BY ONE POSITION EACH LETTER THE ONE TIME PAD IS THEORETICALLY UNBREAKABLE IF USED CORRECTLY | zimmermann | zimmermann | null | {} | hard | en | 163 | 163 | synthetic_educational | null | null | [
"codebook_frequency",
"number_group_analysis"
] | Zimmermann Telegram code: WWI German diplomatic numeric codebook cipher. |
caesar-v2-0333 | TGXJWAFYNTS JCUJWNRJSY FSI WJFXTS FWJ YMJ YMWJJ UNQQFWX TK FQQ XHNJSYNKNH NSVZNWD FSI UWTLWJXX | TGXJWAFYNTS JCUJWNRJSY FSI WJFXTS FWJ YMJ YMWJJ UNQQFWX TK FQQ XHNJSYNKNH NSVZNWD FSI UWTLWJXX | OBSERVATION EXPERIMENT AND REASON ARE THE THREE PILLARS OF ALL SCIENTIFIC INQUIRY AND PROGRESS | caesar | caesar | substitution | {
"type": "shift",
"value": 5
} | beginner | en | 81 | 94 | cipher_museum | 2.0 | public | null | null |
kryptos-v2-0177 | MVYRCJURUKNPMNBMFMFFHVBYXWZCGMTSUVPYLWRYQLUCQXWKBUHFVYKBYKPXRKUPFQOUZGQBTNSUGDE | MVYRCJURUKNPMNBMFMFFHVBYXWZCGMTSUVPYLWRYQLUCQXWKBUHFVYKBYKPXRKUPFQOUZGQBTNSUGDE | RICHMOND HAS FALLEN OUR FORCES HAVE ENTERED THE CITY RESISTANCE IS ENDED INFORM THE PRESIDENT | kryptos | kryptos | polyalphabetic | {
"type": "keyword",
"value": "LANGLEY"
} | advanced | en | 79 | 79 | cipher_museum | 2.0 | public | null | null |
two-square-v2-0202 | THBLASBQKIAFSTFIQFOOLTICAFAUITWFQMBTDFAOAFLGRIETHEHDCIRLKQMEGMVIHRPFREYLNKERHDAW | THBLASBQKIAFSTFIQFOOLTICAFAUITWFQMBTDFAOAFLGRIETHEHDCIRLKQMEGMVIHRPFREYLNKERHDAW | THE KASISKI TEST FINDS REPEATED SEQUENCES TO DETERMINE THE KEY LENGTH OF A VIGENERE CIPHER KEY | two_square | two_square | polygraphic | {
"key1": "LIBERTY",
"key2": "FREEDOM"
} | advanced | en | 80 | 80 | cipher_museum | 2.0 | public | null | null |
typex-v2-0108 | QMNFJIPSUQUNZMWAPUMUZBJNZOMKSKNWWVBDXHXHNCWYYOSBZTAPNKUMEZHKEUQADRRYTPEZKMWULEHDTNLSVKSBFTYGAWPAHXZEAFSOYHZVCHXMDUNLXGZSGQYUMJYIXNVYOBVFVRVGLCT | QMNFJIPSUQUNZMWAPUMUZBJNZOMKSKNWWVBDXHXHNCWYYOSBZTAPNKUMEZHKEUQADRRYTPEZKMWULEHDTNLSVKSBFTYGAWPAHXZEAFSOYHZVCHXMDUNLXGZSGQYUMJYIXNVYOBVFVRVGLCT | 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 | typex | typex | machine | {
"type": "keyword",
"value": "LONDON"
} | expert | en | 143 | 143 | cipher_museum | 2.0 | public | null | null |
cda-0018231 | 16.2.10 10.1.8 11.3.8 16.6.7 17.1.6 19.5.6 17.2.9 10.2.5 16.4.8 15.6.6 4.4.4 4.3.8 13.3.5 16.5.3 8.3.10 13.3.7 8.6.9 14.4.4 17.2.6 6.1.1 1.4.10 17.6.3 10.3.10 14.4.6 5.4.6 3.1.4 9.3.9 17.3.1 10.3.9 3.6.3 16.5.9 19.6.9 3.5.6 15.5.2 8.1.9 8.3.5 12.1.6 12.4.2 15.2.3 13.4.3 1.2.2 5.2.2 10.2.5 14.6.8 6.4.9 11.5.6 3.5.4 1.2.... | 16.2.10 10.1.8 11.3.8 16.6.7 17.1.6 19.5.6 17.2.9 10.2.5 16.4.8 15.6.6 4.4.4 4.3.8 13.3.5 16.5.3 8.3.10 13.3.7 8.6.9 14.4.4 17.2.6 6.1.1 1.4.10 17.6.3 10.3.10 14.4.6 5.4.6 3.1.4 9.3.9 17.3.1 10.3.9 3.6.3 16.5.9 19.6.9 3.5.6 15.5.2 8.1.9 8.3.5 12.1.6 12.4.2 15.2.3 13.4.3 1.2.2 5.2.2 10.2.5 14.6.8 6.4.9 11.5.6 3.5.4 1.2.... | AN AFFINE CIPHER APPLIES A LINEAR FUNCTION TO EACH LETTER THE ARCHITECTURE SHOULD MAKE MISUSE HARDER | arnold_andre | arnold_andre | null | {} | hard | en | 85 | 85 | synthetic_educational | null | null | [
"book_cipher_attack",
"triple_index_search"
] | Arnold-André book cipher: coordinates (page.section.word) referencing a shared text. |
aeneas-tacticus-v3-0045 | 19 20 5 1 13 16 15 23 5 18 20 18 1 14 19 6 15 18 13 19 | 19 20 5 1 13 16 15 23 5 18 20 18 1 14 19 6 15 18 13 19 | STEAM POWER TRANSFORMS | aeneas_tacticus | aeneas_tacticus | steganography | {
"type": "none",
"value": null
} | expert | en | 35 | 54 | cipher_museum | 2.0 | public | null | null |
cardano-autokey-v3-0267 | KALXAPVEVHOTVRWLHCRINZDMTUBLLCNLVVASLALVLMKAINPCVVLCPAJHRXKHDCTFGKLALTALIV | KALXAPVEVHOTVRWLHCRINZDMTUBLLCNLVVASLALVLMKAINPCVVLCPAJHRXKHDCTFGKLALTALIV | THE THIN RED LINE STOOD FIRM AT BALACLAVA AS THE RUSSIAN CAVALRY CHARGED ACROSS THE PLAIN | cardano_autokey | cardano_autokey | polyalphabetic | {
"type": "keyword",
"value": "ROME"
} | advanced | en | 74 | 74 | cipher_museum | 2.0 | public | null | null |
argenti-v3-0234 | 75 77 11 63 33 13 27 28 41 48 77 39 11 57 20 28 27 11 | 75 77 11 63 33 13 27 28 41 48 77 39 11 57 20 28 27 11 | TREASURE BURIED HERE | argenti | argenti | nomenclator | {
"type": "seed",
"value": "VATICAN"
} | expert | en | 36 | 53 | cipher_museum | 2.0 | public | null | null |
typex-v3-0341 | ESVQIXQVLGDRMFNTHFUI | ESVQIXQVLGDRMFNTHFUI | THE REDCOATS ARE COMING | typex | typex | machine | {
"type": "keyword",
"value": "WINSTON"
} | expert | en | 20 | 20 | cipher_museum | 2.0 | public | null | null |
bifid-v2-0642 | VRRLAUWIQOVRHPTXLBQDUPORRGPUQYUGBEENDCDKPEEREHDCAAUFATRUYEUTHAIEWGPXPHD | VRRLAUWIQOVRHPTXLBQDUPORRGPUQYUGBEENDCDKPEEREHDCAAUFATRUYEUTHAIEWGPXPHD | WITH MALICE TOWARD NONE WITH CHARITY FOR ALL LET US BIND UP THE NATIONS WOUNDS AND HEAL | bifid | bifid | fractionation | {
"type": "keyword",
"value": "TRIUMPH"
} | advanced | en | 71 | 71 | cipher_museum | 2.0 | public | null | null |
bazeries-v3-0460 | BFOHAQOFXFVGPHUBO | BFOHAQOFXFVGPHUBO | THE RAILWAY ARRIVES | bazeries | bazeries | transposition | {
"type": "integer",
"value": 53
} | advanced | en | 17 | 17 | cipher_museum | 2.0 | public | null | null |
playfair-v2-0198 | OKFAOZNADBPWWAETFUFUDRTELONBCFBOTDAWLDNPDLERTFURCOKRBANIKGFARNLOFBHWOCWCWHRADFFXDL | OKFAOZNADBPWWAETFUFUDRTELONBCFBOTDAWLDNPDLERTFURCOKRBANIKGFARNLOFBHWOCWCWHRADFFXDL | THOSE WHO CANNOT REMEMBER THE PAST ARE CONDEMNED TO REPEAT IT AS PHILOSOPHER SANTAYANA OBSERVED | playfair | playfair | polygraphic | {
"type": "keyword",
"value": "FORTRESS"
} | intermediate | en | 82 | 82 | cipher_museum | 2.0 | public | null | null |
scytale-v2-0247 | ALNUOLATTFEEBVLTIATXFSEEEOTEPFIRDONEREISNUNFSARCTMPAOONIIIEONRFUEENNNETANNNGTTWHMECCFYOCEEQEYEODOURUOODUENNIIFFEALSICVTTRRITTAOHHAEBIEXCEELCETDXAISGARUSX | ALNUOLATTFEEBVLTIATXFSEEEOTEPFIRDONEREISNUNFSARCTMPAOONIIIEONRFUEENNNETANNNGTTWHMECCFYOCEEQEYEODOURUOODUENNIIFFEALSICVTTRRITTAOHHAEBIEXCEELCETDXAISGARUSX | AFTER AN UNEQUIVOCAL EXPERIENCE OF THE INEFFICIENCY OF THE SUBSISTING FEDERAL GOVERNMENT YOU ARE CALLED UPON TO DELIBERATE ON A NEW CONSTITUTION FOR THE UNITED STATES OF AMERICA | scytale | scytale | transposition | {
"type": "integer",
"value": 9
} | intermediate | en | 153 | 153 | cipher_museum | 2.0 | public | null | null |
vigenere-es-075 | ORQHTPGVJSBODCMEHFXZCYHEWVNDKRKRZAH | ORQHTPGVJSBODCMEHFXZCYHEWVNDKRKRZAH | MAS SABE EL DIABLO POR VIEJO QUE POR DIABLO | vigenere | vigenere | polyalphabetic | {
"type": "keyword",
"value": "CRYPTO"
} | intermediate | es | 35 | 35 | cipher_museum | 0.2 | public | null | null |
kama-sutra-v3-0101 | UX QGL ZLRLXQLLXQG OLXQIVA UZYYO XLKQCX ZAXQGLZUSLM QGL KCVW CJ OCBLVXUOIZ HYEUELC YXM WLBELV UXQC Y IXUJULM QGLCVA CJ HVYRUQYQUCX QGYQ LNBEYUXLM PCQG QGL JYEE CJ YBBELZ YXM QGL CVPUQZ CJ BEYXLQZ | UX QGL ZLRLXQLLXQG OLXQIVA UZYYO XLKQCX ZAXQGLZUSLM QGL KCVW CJ OCBLVXUOIZ HYEUELC YXM WLBELV UXQC Y IXUJULM QGLCVA CJ HVYRUQYQUCX QGYQ LNBEYUXLM PCQG QGL JYEE CJ YBBELZ YXM QGL CVPUQZ CJ BEYXLQZ | IN THE SEVENTEENTH CENTURY ISAAC NEWTON SYNTHESIZED THE WORK OF COPERNICUS GALILEO AND KEPLER INTO A UNIFIED THEORY OF GRAVITATION THAT EXPLAINED BOTH THE FALL OF APPLES AND THE ORBITS OF PLANETS | kama_sutra | kama_sutra | substitution | {
"type": "keyword",
"value": "SANSKRIT"
} | intermediate | en | 164 | 195 | cipher_museum | 2.0 | public | null | null |
sigaba-v2-0066 | GXFMVECRMPTKZUZDTTYXCAAMABNOMUPNLBBJPNJDWJYTXJEKZPBPSCMCAKJGSIZNUZSYJTLZDDNNT | GXFMVECRMPTKZUZDTTYXCAAMABNOMUPNLBBJPNJDWJYTXJEKZPBPSCMCAKJGSIZNUZSYJTLZDDNNT | THE FEAR OF THE LORD IS THE BEGINNING OF WISDOM AND KNOWLEDGE OF THE HOLY ONE IS UNDERSTANDING | sigaba | sigaba | machine | {
"type": "seed",
"value": "ECMMARK"
} | expert | en | 77 | 77 | cipher_museum | 2.0 | public | null | null |
cda-0003963 | ANWHN NUJWC EEMAW JNDMX YQDJE JHASR WYWHW EYNIU EANKY NEZXJ YYTPH CTUNZ WNAWX VITOK BNYEI UCXYJ HASRW YWHMC VQPQC JCMJY MYYXY FKALO WGAAU NIWEA LMGNB NXJUL LKLFW GMRJN EYMKH OXURQ VYNKL ZLPGH A | ANWHN NUJWC EEMAW JNDMX YQDJE JHASR WYWHW EYNIU EANKY NEZXJ YYTPH CTUNZ WNAWX VITOK BNYEI UCXYJ HASRW YWHMC VQPQC JCMJY MYYXY FKALO WGAAU NIWEA LMGNB NXJUL LKLFW GMRJN EYMKH OXURQ VYNKL ZLPGH A | PEER REVIEW AND REPRODUCIBILITY MATTER IN RESEARCH CLASSICAL CIPHERS TEACH WHY MODERN SECURITY MATTERS PUBLIC INFRASTRUCTURE DESERVES CAREFUL DESIGN THE MESSAGE WAS HIDDEN BUT NOT SECURE | beaufort | beaufort | null | {
"key": "PRAYER"
} | hard | en | 161 | 161 | synthetic_educational | null | null | [
"kasiski_examination",
"friedman_test",
"index_of_coincidence"
] | Beaufort: E(x)=k-x mod 26 — reciprocal cipher (decryption identical to encryption). |
vic-v3-0329 | 90822168385936956118392289 | 90822168385936956118392289 | THE RAILWAY ARRIVES | vic | vic | substitution | {
"type": "keyword",
"value": "FREEDOM"
} | advanced | en | 26 | 26 | cipher_museum | 2.0 | public | null | null |
jefferson-disk-v2-0272 | QXIEQAJUXZZRMDQKVADKQVIDOUVIZHUMWNICSMONMCDKQMIZZTKYMZNPEFGMHTSTZHUMB | QXIEQAJUXZZRMDQKVADKQVIDOUVIZHUMWNICSMONMCDKQMIZZTKYMZNPEFGMHTSTZHUMB | BLOOD SWEAT AND TEARS THESE ARE WHAT I OFFER YOU FOR THE DEFENSE OF OUR ISLAND NATION | jefferson_disk | jefferson_disk | disk | {
"type": "disk_order",
"value": "1,3,5,2,4,6"
} | expert | en | 69 | 69 | cipher_museum | 2.0 | public | null | null |
cda-0017932 | MA-E / WOL-LA-CHEE / TKIN / DIBEH-YAZZIE / MOASI / DIBEH-YAZZIE / A-KHA / DIBEH / DZEH / BE / TKIN / DIBEH / WOL-LA-CHEE / CLA-GI-AIH / A-KHA / DIBEH / THAN-ZIE / NO-DA-IH / GAH / DZEH / TSAH / A-KHA / THAN-ZIE / WOL-LA-CHEE /... | MA-E / WOL-LA-CHEE / TKIN / DIBEH-YAZZIE / MOASI / DIBEH-YAZZIE / A-KHA / DIBEH / DZEH / BE / TKIN / DIBEH / WOL-LA-CHEE / CLA-GI-AIH / A-KHA / DIBEH / THAN-ZIE / NO-DA-IH / GAH / DZEH / TSAH / A-KHA / THAN-ZIE / WOL-LA-CHEE /... | FAIL CLOSED IS A POSTURE NOT A SLOGAN | navajo_code | navajo_code | null | {} | hard | en | 175 | 175 | synthetic_educational | null | null | [
"codebook_frequency",
"word_list_attack"
] | Navajo Code Talker cipher: Navajo words represent English letters. |
kama-sutra-v2-0204 | QXZXE SQHWU HQ BCUHWHCQ CKK WIL OCXUW XTXHWHQJ UHJQXE WC OCDDLQOL UICYL PCDPXYMDLQW XW MXTQ | QXZXE SQHWU HQ BCUHWHCQ CKK WIL OCXUW XTXHWHQJ UHJQXE WC OCDDLQOL UICYL PCDPXYMDLQW XW MXTQ | NAVAL UNITS IN POSITION OFF THE COAST AWAITING SIGNAL TO COMMENCE SHORE BOMBARDMENT AT DAWN | kama_sutra | kama_sutra | substitution | {
"type": "keyword",
"value": "VATSYANA"
} | intermediate | en | 77 | 91 | cipher_museum | 2.0 | public | null | null |
morse-code-v3-0036 | --. .-. .- ...- .. - -.-- / . -..- .--. .-.. .- .. -. ... / .- .-.. .-.. | --. .-. .- ...- .. - -.-- / . -..- .--. .-.. .- .. -. ... / .- .-.. .-.. | GRAVITY EXPLAINS ALL | morse_code | morse_code | encoding | {
"type": "none",
"value": null
} | beginner | en | 53 | 72 | cipher_museum | 2.0 | public | null | null |
cda-0013924 | UAKBP JUEMZ YIKKG EIJKL PVPUS KPJNK EAWHM MOZQQ TIMIA NPMSU EMMAI SQLYU NMLPO GBDBI GOKFW NVBJV NUJOH HBMXQ XXURP KIDFD ERJMB KUAGG EYXTL JDKRX FHDEN WTHHF AEZQO UHJBL AGTFB PKI | UAKBP JUEMZ YIKKG EIJKL PVPUS KPJNK EAWHM MOZQQ TIMIA NPMSU EMMAI SQLYU NMLPO GBDBI GOKFW NVBJV NUJOH HBMXQ XXURP KIDFD ERJMB KUAGG EYXTL JDKRX FHDEN WTHHF AEZQO UHJBL AGTFB PKI | HILL CIPHER USES LINEAR ALGEBRA TO ENCRYPT BLOCKS OF LETTERS MODERN ENCRYPTION IS NOT BROKEN BY LETTER FREQUENCY THE PLAYFAIR CIPHER ENCRYPTS PAIRS OF LETTERS SIMULTANEOUSLY | one_time_pad | one_time_pad | null | {} | hard | en | 148 | 148 | synthetic_educational | null | null | [
"information_theoretic_proof",
"key_reuse_attack"
] | One-time pad: theoretically unbreakable if key is truly random and never reused. |
cda-0019147 | ⌐ X K ┌· ┘· ─ ¬· r └ ⌐ Γ· ┌ ─ L L Γ X X K ┌· ┘· ─ ¬· L K· Γ· Γ L ─ r L ⌐· ┌· L └· X· L ─ r ⌒· ⌐ ─ ⌐ └ ⌒· X Γ· X r ⌐ ─ ┌· L K· L ⌐ └ ⌒ L ⌐ ┐ r Γ· ┐· r· L ┌· X ⌐ X r ⌒· K ⌐ └ L Γ· X ⌐ ┌· ┘· Γ X· X L Γ ¬ ⌒· X ┐· ⌐ ┌· K ⌐ ─ X K ┘· L ─ r ┌· ⌒· ┐· K ┌ L X X ⌐ ¬· L X ⌐ K ¬ ⌐ X r· L ─ r ┘· Γ L X ¬ ⌒· ┌· L K· L ┌· X Γ· ─ ¬· K r... | ⌐ X K ┌· ┘· ─ ¬· r └ ⌐ Γ· ┌ ─ L L Γ X X K ┌· ┘· ─ ¬· L K· Γ· Γ L ─ r L ⌐· ┌· L └· X· L ─ r ⌒· ⌐ ─ ⌐ └ ⌒· X Γ· X r ⌐ ─ ┌· L K· L ⌐ └ ⌒ L ⌐ ┐ r Γ· ┐· r· L ┌· X ⌐ X r ⌒· K ⌐ └ L Γ· X ⌐ ┌· ┘· Γ X· X L Γ ¬ ⌒· X ┐· ⌐ ┌· K ⌐ ─ X K ┘· L ─ r ┌· ⌒· ┐· K ┌ L X X ⌐ ¬· L X ⌐ K ¬ ⌐ X r· L ─ r ┘· Γ L X ¬ ⌒· ┌· L K· L ┌· X Γ· ─ ¬· K r... | A STRONG CLAIM NEEDS STRONG EVIDENCE FREQUENCY ANALYSIS CAN REVEAL WEAK CIPHERS A SCYTALE IS A ROD USED BY SPARTANS TO ENCRYPT MESSAGES ATBASH ENCODES BY REVERSING THE ALPHABET | pigpen | pigpen | null | {} | medium | en | 65 | 65 | synthetic_educational | null | null | [
"symbol_frequency",
"grid_position_decode"
] | Pigpen cipher: letters encoded as positions in tic-tac-toe and X grids. |
red-type-a-v2-0309 | TUDMQAWUHIBOXYWKBYWEMUNWKKAGAJAKYJAPBJOCUFCAGHUWPZOHANUOFHGOUSNTACTMEYJ | TUDMQAWUHIBOXYWKBYWEMUNWKKAGAJAKYJAPBJOCUFCAGHUWPZOHANUOFHGOUSNTACTMEYJ | WITH MALICE TOWARD NONE WITH CHARITY FOR ALL LET US BIND UP THE NATIONS WOUNDS AND HEAL | red_type_a | red_type_a | machine | {
"type": "keyword",
"value": "TOKYO"
} | advanced | en | 71 | 71 | cipher_museum | 2.0 | public | null | null |
wheatstone-v3-0116 | DAUSVUIT | DAUSVUIT | DEUS VULT | wheatstone | wheatstone | polygraphic | {
"type": "keyword",
"value": "LONDON"
} | advanced | en | 8 | 8 | cipher_museum | 2.0 | public | null | null |
confederate-vigenere-v3-0224 | DZZPIUAQWXKMTIPOA | DZZPIUAQWXKMTIPOA | ARCHERS TO THE WALLS | confederate_vigenere | confederate_vigenere | polyalphabetic | {
"type": "keyword",
"value": "DIXIE"
} | intermediate | en | 17 | 17 | cipher_museum | 2.0 | public | null | null |
cda-0016513 | 05118 0344 06356 6291 01661 05727 4443 7258 04746 05723 01268 6040 2531 01659 3862 05040 0641 05665 1663 0348 3536 4129 04717 4476 4777 00375 03785 5044 2578 0329 00669 1656 6346 02874 1016 6049 06619 0689 06028 06305 2856 6299 06693 6306 02827 4777 04489 06281 02536 1652 0411 5666 1030 02610 2915 06288 01654 1013 0632... | 05118 0344 06356 6291 01661 05727 4443 7258 04746 05723 01268 6040 2531 01659 3862 05040 0641 05665 1663 0348 3536 4129 04717 4476 4777 00375 03785 5044 2578 0329 00669 1656 6346 02874 1016 6049 06619 0689 06028 06305 2856 6299 06693 6306 02827 4777 04489 06281 02536 1652 0411 5666 1030 02610 2915 06288 01654 1013 0632... | PATTERN WORDS HELP BREAK MONOALPHABETIC SUBSTITUTION THE ARCHITECTURE SHOULD MAKE MISUSE HARDER AN AFFINE CIPHER APPLIES A LINEAR FUNCTION TO EACH LETTER THE PLAYFAIR CIPHER ENCRYPTS PAIRS OF LETTERS SIMULTANEOUSLY | zimmermann | zimmermann | null | {} | hard | en | 185 | 185 | synthetic_educational | null | null | [
"codebook_frequency",
"number_group_analysis"
] | Zimmermann Telegram code: WWI German diplomatic numeric codebook cipher. |
cda-0019353 | KERCK HOFFS PRINZ IPLES AYSTX ESYST EMMUS TBESE CUREE VENIF ENEMY KNOWS ALGOR ITHMT HELIX RARYX RESEZ VESKN OWLEX GEFOR THECO MMUNX TYCCZ | KERCK HOFFS PRINZ IPLES AYSTX ESYST EMMUS TBESE CUREE VENIF ENEMY KNOWS ALGOR ITHMT HELIX RARYX RESEZ VESKN OWLEX GEFOR THECO MMUNX TYCCZ | KERCKHOFFS PRINCIPLE SAYS THE SYSTEM MUST BE SECURE EVEN IF ENEMY KNOWS ALGORITHM THE LIBRARY PRESERVES KNOWLEDGE FOR THE COMMUNITY | commercial_code | commercial_code | null | {} | hard | en | 115 | 115 | synthetic_educational | null | null | [
"codebook_frequency",
"five_letter_group_analysis"
] | Commercial code: five-letter groups from a codebook, often ending in X or Z. |
cda-0021125 | CHEO LCHO RSHE EDYQ OKED YCHO LDAI INYK CHEO LRCH EOLK AIII NQOK EEDY OKED YLKA IINO TEDY CHED YYTA IINO XED | CHEO LCHO RSHE EDYQ OKED YCHO LDAI INYK CHEO LRCH EOLK AIII NQOK EEDY OKED YLKA IINO TEDY CHED YYTA IINO XED | THE DETECTIVE STUDIES PATTERNS BEFORE MAKING CLAIMS | voynich_render | voynich_render | null | {} | hard | en | 87 | 87 | synthetic_educational | null | null | [
"statistical_analysis",
"unsolved"
] | Voynich manuscript: undeciphered 15th-century script; pseudo-syllabic output. |
m94-v3-0118 | JWCDRFYKQYXZYTKFFUGP | JWCDRFYKQYXZYTKFFUGP | THE COMPASS POINTS TRUE | m94 | m94 | machine | {
"type": "seed",
"value": "FREEDOM"
} | expert | en | 20 | 20 | cipher_museum | 2.0 | public | null | null |
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