id stringlengths 7 52 | text stringlengths 6 2.11k | ciphertext stringlengths 6 2.11k | plaintext stringlengths 6 282 | label stringclasses 81
values | cipher stringclasses 81
values | cipher_family stringclasses 13
values | key unknown | difficulty stringclasses 7
values | language stringclasses 8
values | text_length int64 6 1.09k | length int64 6 1.28k | source stringclasses 2
values | dataset_version stringclasses 2
values | split stringclasses 1
value | attack_methods listlengths 0 3 ⌀ | educational_note stringclasses 32
values |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
trifid-v2-0181 | OQBSV+FFCKCYCDPDLOSUCPVEQRCCLEFFLZDXCRVLFVGFC+TDHN+FIHUGOJOWKDEHOFEVIPROEAJ | OQBSV+FFCKCYCDPDLOSUCPVEQRCCLEFFLZDXCRVLFVGFC+TDHN+FIHUGOJOWKDEHOFEVIPROEAJ | ARMY OF NORTHERN VIRGINIA SURRENDERS AT APPOMATTOX COURTHOUSE THE WAR IN THE EAST IS OVER | trifid | trifid | fractionation | {
"type": "keyword",
"value": "FORTRESS"
} | advanced | en | 75 | 75 | cipher_museum | 2.0 | public | null | null |
solitaire-v2-0241 | CJBTGXLNPSEPFJNOKQMOVCPGRXIWGMNDOXKMKQDVKAMQQJOKVHHPDBMPQXRPUXPYNEXXTPRYWAPBZMDFVYFYPTOUOJWKXSBBJSOOWNECTIPKJHBMFDPIFDSBZJFRUZUFNITZSICKKADIVJRWYIHQXMPEPZINFFIFN | CJBTGXLNPSEPFJNOKQMOVCPGRXIWGMNDOXKMKQDVKAMQQJOKVHHPDBMPQXRPUXPYNEXXTPRYWAPBZMDFVYFYPTOUOJWKXSBBJSOOWNECTIPKJHBMFDPIFDSBZJFRUZUFNITZSICKKADIVJRWYIHQXMPEPZINFFIFN | YESTERDAY DECEMBER SEVENTH NINETEEN FORTY ONE A DATE WHICH WILL LIVE IN INFAMY THE UNITED STATES OF AMERICA WAS SUDDENLY AND DELIBERATELY ATTACKED BY NAVAL AND AIR FORCES OF THE EMPIRE OF JAPAN | solitaire | solitaire | stream | {
"type": "passphrase",
"value": "SCHNEIER"
} | expert | en | 161 | 161 | cipher_museum | 2.0 | public | null | null |
culper-ring-v3-0068 | 100 998 818 815 804 804 803 999 101 998 811 808 806 807 819 999 106 100 998 820 811 819 808 812 800 819 804 999 998 818 815 804 804 803 999 998 811 808 812 808 819 999 104 100 998 820 813 808 821 804 817 818 804 999 998 804 808 813 818 819 804 808 813 999 998 803 804 812 814 813 818 819 817 800 819 804 803 999 117 | 100 998 818 815 804 804 803 999 101 998 811 808 806 807 819 999 106 100 998 820 811 819 808 812 800 819 804 999 998 818 815 804 804 803 999 998 811 808 812 808 819 999 104 100 998 820 813 808 821 804 817 818 804 999 998 804 808 813 818 819 804 808 813 999 998 803 804 812 814 813 818 819 817 800 819 804 803 999 117 | THE SPEED OF LIGHT IS THE ULTIMATE SPEED LIMIT IN THE UNIVERSE EINSTEIN DEMONSTRATED THIS | culper_ring | culper_ring | codebook | {
"type": "none",
"value": null
} | expert | en | 237 | 315 | cipher_museum | 2.0 | public | null | null |
cda-0011597 | SKLHB RKXSL RSMBL VKCMP ZOHQL OXVMV LKHBZ LBLAL BEVEV SLOGL LZVHG KCGLV SSKBL HSOCZ LP | SKLHB RKXSL RSMBL VKCMP ZOHQL OXVMV LKHBZ LBLAL BEVEV SLOGL LZVHG KCGLV SSKBL HSOCZ LP | THE ARCHITECTURE SHOULD MAKE MISUSE HARDER EVERY SYSTEM NEEDS AN HONEST THREAT MODEL | monoalphabetic | monoalphabetic | null | {
"alphabet": "HYRZLJTKXIQPOGCDFBVSMAWNEU"
} | medium | en | 72 | 72 | synthetic_educational | null | null | [] | |
geheimschreiber-v3-0107 | OBATMNNDOBUVNRLNKDFCWPB | OBATMNNDOBUVNRLNKDFCWPB | ROME WAS NOT BUILT IN ONE DAY | geheimschreiber | geheimschreiber | machine | {
"type": "seed",
"value": "KAISER"
} | expert | en | 23 | 23 | cipher_museum | 2.0 | public | null | null |
chaocipher-201 | DWLOSTKLGPCBBPLTLK | DWLOSTKLGPCBBPLTLK | THE BRIDGE IS SECURED | chaocipher | chaocipher | machine | {
"type": "keyword",
"value": "MUSEUM"
} | advanced | en | 18 | 18 | cipher_museum | 0.2 | public | null | null |
cardano-autokey-v2-0373 | RFYXVRNHHRUKCDJQCLPBMTVZMRPGSTYALMVRJKNKKMRPAMTYALWMVTAALBVTLJHHVRLRUJZVEZQRGRMIURVGCLWPHXJDBGHRHPTJFVRTXSBNNRAYQBFLBBNNBWBSTFKALYHVBXHVLTTXWGTFMQVZKC | RFYXVRNHHRUKCDJQCLPBMTVZMRPGSTYALMVRJKNKKMRPAMTYALWMVTAALBVTLJHHVRLRUJZVEZQRGRMIURVGCLWPHXJDBGHRHPTJFVRTXSBNNRAYQBFLBBNNBWBSTFKALYHVBXHVLTTXWGTFMQVZKC | 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 | cardano_autokey | cardano_autokey | polyalphabetic | {
"type": "keyword",
"value": "ROME"
} | advanced | en | 150 | 150 | cipher_museum | 2.0 | public | null | null |
double-transposition-v3-0123 | SCHETSAESEMDHTELUICC | SCHETSAESEMDHTELUICC | THE ALCHEMIST SUCCEEDS | double_transposition | double_transposition | transposition | {
"key1": "LIBERTY",
"key2": "FREEDOM"
} | advanced | en | 20 | 20 | cipher_museum | 2.0 | public | null | null |
wheatstone-v2-0065 | YLTIGJTDDQHYIPOQHNJSPHLHNYOQVHYLHOQNRIPQHRIRQHFRYIRURNXQNYTDTIGQNYESDTQYJI | YLTIGJTDDQHYIPOQHNJSPHLHNYOQVHYLHOQNRIPQHRIRQHFRYIRURNXQNYTDTIGQNYESDTQYJI | I CAN DO ALL THINGS THROUGH CHRIST WHICH STRENGTHENETH ME IN EVERY TRIAL AND TRIBULATION | wheatstone | wheatstone | polygraphic | {
"type": "keyword",
"value": "TELEGRAPHY"
} | advanced | en | 74 | 74 | cipher_museum | 2.0 | public | null | null |
solitaire-v2-0088 | UFGMUWPZWDEAKDYWKFIIEAKRXNZTKDMKVLLMLHIJFCRWPJNHGEQHDRXNHUFEVKDVBXUFAKKTOPJSEEL | UFGMUWPZWDEAKDYWKFIIEAKRXNZTKDMKVLLMLHIJFCRWPJNHGEQHDRXNHUFEVKDVBXUFAKKTOPJSEEL | CLAUDE SHANNON PROVED THAT THE ONE TIME PAD ACHIEVES PERFECT SECRECY WHEN USED CORRECTLY ONCE | solitaire | solitaire | stream | {
"type": "none",
"value": null
} | expert | en | 79 | 79 | cipher_museum | 2.0 | public | null | null |
polybius-v3-0076 | 43 24 22 33 11 31 43 24 33 44 15 31 31 24 22 15 33 13 15 34 42 43 24 22 24 33 44 24 33 51 34 31 51 15 43 24 33 44 15 42 13 15 35 44 24 34 33 11 33 14 11 33 11 31 54 43 24 43 34 21 15 31 15 13 44 42 34 33 24 13 13 34 32 32 45 33 24 13 11 44 24 34 33 43 | 43 24 22 33 11 31 43 24 33 44 15 31 31 24 22 15 33 13 15 34 42 43 24 22 24 33 44 24 33 51 34 31 51 15 43 24 33 44 15 42 13 15 35 44 24 34 33 11 33 14 11 33 11 31 54 43 24 43 34 21 15 31 15 13 44 42 34 33 24 13 13 34 32 32 45 33 24 13 11 44 24 34 33 43 | SIGNALS INTELLIGENCE OR SIGINT INVOLVES INTERCEPTION AND ANALYSIS OF ELECTRONIC COMMUNICATIONS | polybius | polybius | substitution | {
"type": "none",
"value": null
} | beginner | en | 168 | 251 | cipher_museum | 2.0 | public | null | null |
cda-0006584 | VAQR KBSP BVAP VQRA PRZR NFHE RFYR GGRE SERD HRAP LQVF GEVO HGVB AGUR CYNL SNVE PVCU RERA PELC GFCN VEFB SYRG GREF FVZH YGNA RBHF YLGU RGEV GURZ VHFP VCUR ENQI NAPR FGUR NYCU NORG OLBA RCBF VGVB ARNP UYRG GRE | VAQR KBSP BVAP VQRA PRZR NFHE RFYR GGRE SERD HRAP LQVF GEVO HGVB AGUR CYNL SNVE PVCU RERA PELC GFCN VEFB SYRG GREF FVZH YGNA RBHF YLGU RGEV GURZ VHFP VCUR ENQI NAPR FGUR NYCU NORG OLBA RCBF VGVB ARNP UYRG GRE | INDEX OF COINCIDENCE MEASURES LETTER FREQUENCY DISTRIBUTION THE PLAYFAIR CIPHER ENCRYPTS PAIRS OF LETTERS SIMULTANEOUSLY THE TRITHEMIUS CIPHER ADVANCES THE ALPHABET BY ONE POSITION EACH LETTER | rot13 | rot13 | null | {
"shift": 13
} | hard | en | 167 | 167 | synthetic_educational | null | null | [
"brute_force_26",
"self_inverse_check"
] | ROT-13 is Caesar with shift 13 — it is its own inverse. |
playfair-vf-0064 | NQGUGIFSEBOEQMGINEQYNKYQQOPQBFNDEGNQGUGIFLVILNNKPUIMDOKGKGLWNUBHVLKU | NQGUGIFSEBOEQMGINEQYNKYQQOPQBFNDEGNQGUGIFLVILNNKPUIMDOKGKGLWNUBHVLKU | TO EVERY THING THERE IS A SEASON AND A TIME TO EVERY PURPOSE UNDER THE HEAVEN ABOVE | playfair | playfair | polygraphic | {
"type": "keyword",
"value": "PLAYFAIR"
} | intermediate | en | 68 | 68 | cipher_museum | 2.0 | public | null | null |
porta-v3-0408 | KNAAOXDEXPZXQTHTSUHMSSZTJRNPSJFPLOUPLTAYSPVNOVEPDTHKDOEFMRRGXLARUTSLDKDNNHTAFHEQFASGOPRZMVQTLQOLSLAVMESMHBPTPMLVAAOCTCWMDDUVUPDQBCFWODIDDROWTUFMYTJAAEORAVRPJPRPQMIEM | KNAAOXDEXPZXQTHTSUHMSSZTJRNPSJFPLOUPLTAYSPVNOVEPDTHKDOEFMRRGXLARUTSLDKDNNHTAFHEQFASGOPRZMVQTLQOLSLAVMESMHBPTPMLVAAOCTCWMDDUVUPDQBCFWODIDDROWTUFMYTJAAEORAVRPJPRPQMIEM | ULTRA INTELLIGENCE FROM BLETCHLEY PARK GAVE THE ALLIES AN ENORMOUS ADVANTAGE IN WORLD WAR TWO BY REVEALING GERMAN INTENTIONS BEFORE OPERATIONS BEGAN BUT THE SOURCE HAD TO BE PROTECTED AT ALL COSTS | porta | porta | polyalphabetic | {
"type": "keyword",
"value": "VENICE"
} | intermediate | en | 165 | 165 | cipher_museum | 2.0 | public | null | null |
slidex-v2-0376 | OVITVIGQZIFRFJFZCPPWIJCPOELGEGBDADYPPGPWZJDOTHHMMOLRLLUEXJJZLQYPVJLFYPDOHHIWSRPWJZNXRQSOUNCXBIFZRZITMOCPMOLQXUYOBIBKTAFHBQMMCPRBGCHFSOKEPWMOUQBKDYHFSUEGLFAOHRFLCPCP | OVITVIGQZIFRFJFZCPPWIJCPOELGEGBDADYPPGPWZJDOTHHMMOLRLLUEXJJZLQYPVJLFYPDOHHIWSRPWJZNXRQSOUNCXBIFZRZITMOCPMOLQXUYOBIBKTAFHBQMMCPRBGCHFSOKEPWMOUQBKDYHFSUEGLFAOHRFLCPCP | ULTRA INTELLIGENCE DERIVED FROM DECRYPTED GERMAN ENIGMA TRAFFIC INDICATES THAT ENEMY PANZER DIVISIONS ARE CONCENTRATED AT CALAIS CONFIRMING THE DECEPTION OPERATION FORTITUDE HAS SUCCEEDED | slidex | slidex | transposition | {
"type": "keyword",
"value": "FREEDOM"
} | advanced | en | 164 | 164 | cipher_museum | 2.0 | public | null | null |
red-type-a-v2-0145 | FUGVEVTZEWZUADZINO | FUGVEVTZEWZUADZINO | CONTACT HAS BEEN MADE | red_type_a | red_type_a | machine | {
"type": "keyword",
"value": "YAMATO"
} | advanced | en | 18 | 18 | cipher_museum | 2.0 | public | null | null |
cda-0012457 | QOKE EDYY TEDY SHOR DAIN YCTA IINY KCHE OLDA IINS HEDY CHOL DAII NCHO LDAI INSH EOLO KEED YSHA LOKA INYT EDYO KEDY DARA LDAR ALCH OLDA IINQ OKEE DYCH EDYS HEDY QOTE DYSH AIIN CHOL DAII NOTO LSHE DYSH EDYY PCHO LQOK EEDY SHEE DYSH AIIN OTOL SHAR ALOT AINS HARA LOKS HYOT AINO TOLR CHEO LYTE DYQO KEDY | QOKE EDYY TEDY SHOR DAIN YCTA IINY KCHE OLDA IINS HEDY CHOL DAII NCHO LDAI INSH EOLO KEED YSHA LOKA INYT EDYO KEDY DARA LDAR ALCH OLDA IINQ OKEE DYCH EDYS HEDY QOTE DYSH AIIN CHOL DAII NOTO LSHE DYSH EDYY PCHO LQOK EEDY SHEE DYSH AIIN OTOL SHAR ALOT AINS HARA LOKS HYOT AINO TOLR CHEO LYTE DYQO KEDY | HISTORICAL CIPHERS ARE TEACHERS NOT PROTECTION PEER REVIEW AND REPRODUCIBILITY MATTER IN RESEARCH A TRANSPARENT TOOL SHOULD SHOW ITS REASONING TODAY | voynich_render | voynich_render | null | {} | hard | en | 240 | 240 | synthetic_educational | null | null | [
"statistical_analysis",
"unsolved"
] | Voynich manuscript: undeciphered 15th-century script; pseudo-syllabic output. |
cda-0007858 | DHPZVQ WATFOEHEGQGGFR RSFSFISG NOFRTIY RSFWUA PFHFS SAFNS KBDYF ABYK KUSB GVS XSM FBONS WF EAOZZ GVS PSGG ZSFECAE GUAK JVSES HUS ARFVBR NOWZF TOVZ QYAGRR WF O DBEHHDS AAH O EZBUOA | DHPZVQ WATFOEHEGQGGFR RSFSFISG NOFRTIY RSFWUA PFHFS SAFNS KBDYF ABYK KUSB GVS XSM FBONS WF EAOZZ GVS PSGG ZSFECAE GUAK JVSES HUS ARFVBR NOWZF TOVZ QYAGRR WF O DBEHHDS AAH O EZBUOA | PUBLIC INFRASTRUCTURE DESERVES CAREFUL DESIGN BRUTE FORCE WORKS ONLY WHEN THE KEY SPACE IS SMALL THE BEST LESSONS SHOW WHERE THE METHOD FAILS FAIL CLOSED IS A POSTURE NOT A SLOGAN | porta | porta | null | {
"key": "KEY"
} | hard | en | 149 | 149 | synthetic_educational | null | null | [] | |
rail-fence-v2-0118 | AIEHEQEDHACALVDEPWIAIAUHRRTTEUGDEGULIERAFCGNEITAIHNIGEELSLGDDHROHLHHTONHOIRNALTRSASITTETEATANDTSOOARLSUUINOSNHBBTNATEEHWLEAIOLTOEIIHWNCN | AIEHEQEDHACALVDEPWIAIAUHRRTTEUGDEGULIERAFCGNEITAIHNIGEELSLGDDHROHLHHTONHOIRNALTRSASITTETEATANDTSOOARLSUUINOSNHBBTNATEEHWLEAIOLTOEIIHWNCN | 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 | rail_fence | rail_fence | transposition | {
"type": "integer",
"value": 7
} | intermediate | en | 136 | 136 | cipher_museum | 2.0 | public | null | null |
cda-0017458 | .... .... .. ... . ..... . . .... .. . ... .. ... .. .... .... .... . ..... . ... .... .... .... ..... .... .. . ..... .... ... .. ... ... .... .... ..... ... . . .... ... .. . . . ... . ..... ... .. .. .... .... ... .... ..... .... ... . ..... .. ... . . .... .. . .... . ..... .... ... | .... .... .. ... . ..... . . .... .. . ... .. ... .. .... .... .... . ..... . ... .... .... .... ..... .... .. . ..... .... ... .. ... ... .... .... ..... ... . . .... ... .. . . . ... . ..... ... .. .. .... .... ... .... ..... .... ... . ..... .. ... . . .... .. . .... . ..... .... ... | THE ARCHITECTURE SHOULD MAKE MISUSE HARDER A SCYTALE IS A ROD USED BY SPARTANS TO ENCRYPT MESSAGES ERROR CORRECTION AND DETECTION ARE FUNDAMENTAL TO SECURE SYSTEMS PERHAPS | tap_code | tap_code | null | {} | hard | en | 145 | 145 | 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. |
bazeries-v2-0734 | PKTSYNMLYOLSLAEGHXOSNOMFOGAYNOYVADDYJYLYXGSMAOLHOSLPXXYLTGSYMYLAPKATYFFAARMYOSAOXSOEGH | PKTSYNMLYOLSLAEGHXOSNOMFOGAYNOYVADDYJYLYXGSMAOLHOSLPXXYLTGSYMYLAPKATYFFAARMYOSAOXSOEGH | HEADQUARTERS CONFIRMS THAT THE INTELLIGENCE REPORT IS ACCURATE AND REQUIRES IMMEDIATE SWIFT ACTION | bazeries | bazeries | transposition | {
"type": "integer",
"value": 67
} | advanced | en | 86 | 86 | cipher_museum | 2.0 | public | null | null |
cda-0013039 | ⟨a25⟩ ⟨a29⟩ ⟨w20⟩ ⟨a11⟩ ⟨w20⟩ ⟨w22⟩ ⟨a25⟩ ⟨a01⟩ ⟨w20⟩ ⟨w22⟩ ⟨w22⟩ ⟨w10⟩ ⟨a07⟩ ⟨w22⟩ ⟨w22⟩ ⟨a29⟩ ⟨w10⟩ ⟨w34⟩ ⟨w34⟩ ⟨a29⟩ ⟨w20⟩ ⟨a19⟩ ⟨w20⟩ ⟨a25⟩ ⟨a29⟩ ⟨w20⟩ ⟨w04⟩ ⟨w20⟩ ⟨a25⟩ ⟨a29⟩ ⟨w10⟩ ⟨a17⟩ ⟨a23⟩ ⟨w08⟩ ⟨w32⟩ ⟨a01⟩ ⟨w22⟩ | ⟨a25⟩ ⟨a29⟩ ⟨w20⟩ ⟨a11⟩ ⟨w20⟩ ⟨w22⟩ ⟨a25⟩ ⟨a01⟩ ⟨w20⟩ ⟨w22⟩ ⟨w22⟩ ⟨w10⟩ ⟨a07⟩ ⟨w22⟩ ⟨w22⟩ ⟨a29⟩ ⟨w10⟩ ⟨w34⟩ ⟨w34⟩ ⟨a29⟩ ⟨w20⟩ ⟨a19⟩ ⟨w20⟩ ⟨a25⟩ ⟨a29⟩ ⟨w20⟩ ⟨w04⟩ ⟨w20⟩ ⟨a25⟩ ⟨a29⟩ ⟨w10⟩ ⟨a17⟩ ⟨a23⟩ ⟨w08⟩ ⟨w32⟩ ⟨a01⟩ ⟨w22⟩ | THE BEST LESSONS SHOW WHERE THE METHOD FAILS | babington | babington | null | {} | medium | en | 37 | 37 | synthetic_educational | null | null | [
"nomenclator_frequency",
"symbol_mapping"
] | Babington nomenclator: symbol tokens ⟨wNN⟩/⟨aNN⟩ used in the 1586 Babington Plot. |
kryha-023 | UJXMMIKYMXUQT | UJXMMIKYMXUQT | THE KING IS DEAD | kryha | kryha | machine | {
"type": "keyword",
"value": "KRYHA"
} | expert | en | 13 | 13 | cipher_museum | 0.2 | public | null | null |
confederate-vigenere-v2-0267 | DJLZXDVAEMWPAZEZ | DJLZXDVAEMWPAZEZ | ABORT AND WITHDRAW | confederate_vigenere | confederate_vigenere | polyalphabetic | {
"type": "keyword",
"value": "DIXIE"
} | intermediate | en | 16 | 16 | cipher_museum | 2.0 | public | null | null |
cda-0008628 | NOVYP YAGNQ WFOBC FGHES NCGNF YBUOA PYNFE WQNYP WBVNE FGSOQ UJVLZ ARNEA FSQIE VGLZO HGREF | NOVYP YAGNQ WFOBC FGHES NCGNF YBUOA PYNFE WQNYP WBVNE FGSOQ UJVLZ ARNEA FSQIE VGLZO HGREF | FAIL CLOSED IS A POSTURE NOT A SLOGAN CLASSICAL CIPHERS TEACH WHY MODERN SECURITY MATTERS | porta | porta | null | {
"key": "LIBRARY"
} | medium | en | 75 | 75 | synthetic_educational | null | null | [] | |
porta-v2-0081 | IOLWCMTGPJLNECYMXVXAMSLZLRUAMETEYBWNAUKWTGOYSSCJISUQNJVVYIERYVWNLHBVKGPEWCKJVIXFL | IOLWCMTGPJLNECYMXVXAMSLZLRUAMETEYBWNAUKWTGOYSSCJISUQNJVVYIERYVWNLHBVKGPEWCKJVIXFL | OBSERVATION EXPERIMENT AND REASON ARE THE THREE PILLARS OF ALL SCIENTIFIC INQUIRY AND PROGRESS | porta | porta | polyalphabetic | {
"type": "keyword",
"value": "NAPLES"
} | intermediate | en | 81 | 81 | cipher_museum | 2.0 | public | null | null |
kl7-v3-0279 | JXERYUCEIUGFRQFDDCSXAJGPAVALERHVGMAYQYAHCYEKVWHFCVZEVMYKWIBUHRXDPNTQGVXQFBX | JXERYUCEIUGFRQFDDCSXAJGPAVALERHVGMAYQYAHCYEKVWHFCVZEVMYKWIBUHRXDPNTQGVXQFBX | NEWTON SAW THE APPLE FALL AND INTUITED THE SAME FORCE THAT HOLDS THE PLANETS IN THEIR PATHS | kl7 | kl7 | machine | {
"type": "seed",
"value": "FREEDOM"
} | expert | en | 75 | 75 | cipher_museum | 2.0 | public | null | null |
vic-v2-0451 | 908226576898963418268912802839223491154899091181286903838987690808228968636936839089838689901918090834868901458548634868288 | 908226576898963418268912802839223491154899091181286903838987690808228968636936839089838689901918090834868901458548634868288 | THE AMBASSADOR HAS RECEIVED OUR MOST URGENT DISPATCHES AND AWAITS INSTRUCTIONS FROM LONDON HQ | vic | vic | substitution | {
"type": "keyword",
"value": "FREEDOM"
} | advanced | en | 123 | 123 | cipher_museum | 2.0 | public | null | null |
caesar-v2-1210 | PAA JCXIH EGDRTTS ID STHXVCPITS GPAAN EDXCIH PCS PLPXI UJGIWTG DGSTGH UGDB WXVW RDBBPCS CDL | PAA JCXIH EGDRTTS ID STHXVCPITS GPAAN EDXCIH PCS PLPXI UJGIWTG DGSTGH UGDB WXVW RDBBPCS CDL | ALL UNITS PROCEED TO DESIGNATED RALLY POINTS AND AWAIT FURTHER ORDERS FROM HIGH COMMAND NOW | caesar | caesar | substitution | {
"type": "shift",
"value": 15
} | beginner | en | 77 | 91 | cipher_museum | 2.0 | public | null | null |
kryptos-v3-0411 | FFYCFOTFITZQFILLWVFOWQMHRJZKXVFNIMBMMBHXSWPFQFNMBYVFUFQPDUKFYJZJFEJJHBZGJWCIWQMKMWJZFVXRDGXZMZGYQBNKXCFQYLEAWEBVCBXIHIWEAFGYMTJQTVFASRVPNIXTFETCXTAUXXHDTABNXCCXXXVDZJQFUH | FFYCFOTFITZQFILLWVFOWQMHRJZKXVFNIMBMMBHXSWPFQFNMBYVFUFQPDUKFYJZJFEJJHBZGJWCIWQMKMWJZFVXRDGXZMZGYQBNKXCFQYLEAWEBVCBXIHIWEAFGYMTJQTVFASRVPNIXTFETCXTAUXXHDTABNXCCXXXVDZJQFUH | 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 | kryptos | kryptos | polyalphabetic | {
"type": "keyword",
"value": "SANBORN"
} | advanced | en | 170 | 170 | cipher_museum | 2.0 | public | null | null |
purple-v2-0291 | NZPDILPCRXINAIZEUYZKTXVA | NZPDILPCRXINAIZEUYZKTXVA | TORPEDO AWAY ALL HANDS BRACE | purple | purple | machine | {
"type": "seed",
"value": "SAKURA"
} | expert | en | 24 | 24 | cipher_museum | 2.0 | public | null | null |
cda-0016668 | YTED YCHO LDAI INOR ORSH EDYL KAII NAII INCH OROK EEDY OKED YDAL SHAR ALCH ORLK AIIN OKED YYPC HOLS HEDY OKAI NOTA INOT AIIN OTAI NSHA RALO KEED YQOK ALDA INYC HORD AINY QOTE DYOK SHYY TAII NYKC HEOL CHOL RAII NCHO LDAI INDA LSHA IINA IIIN OTAI NSHA RALC HOLQ OKEE DYCH EDYS HAII NCTA IINQ OKAL DALQ OKAL OTED YQOT EDYO ... | YTED YCHO LDAI INOR ORSH EDYL KAII NAII INCH OROK EEDY OKED YDAL SHAR ALCH ORLK AIIN OKED YYPC HOLS HEDY OKAI NOTA INOT AIIN OTAI NSHA RALO KEED YQOK ALDA INYC HORD AINY QOTE DYOK SHYY TAII NYKC HEOL CHOL RAII NCHO LDAI INDA LSHA IINA IIIN OTAI NSHA RALC HOLQ OKEE DYCH EDYS HAII NCTA IINQ OKAL DALQ OKAL OTED YQOT EDYO ... | THE ONE TIME PAD IS THEORETICALLY UNBREAKABLE IF USED CORRECTLY ROUTE CIPHERS READ A GRID IN A PRESCRIBED GEOMETRIC PATTERN ALAN TURING BROKE ENIGMA WITH CRIBS AND THE BOMBE MACHINE | voynich_render | voynich_render | null | {} | hard | en | 265 | 265 | synthetic_educational | null | null | [
"statistical_analysis",
"unsolved"
] | Voynich manuscript: undeciphered 15th-century script; pseudo-syllabic output. |
typex-v2-0040 | BNVSGKMNHPXKVKJCOHGNQXBK | BNVSGKMNHPXKVKJCOHGNQXBK | NORTH STAR HOLDS FIRM COURSE | typex | typex | machine | {
"type": "keyword",
"value": "LONDON"
} | expert | en | 24 | 24 | cipher_museum | 2.0 | public | null | null |
fractionated-morse-v3-0259 | MKJQAKTDPABBLMQAGABBGTFMQBEAKRQNKJUYNABLVMGEUKBFAKIQBDUVNWEQPTYDUBJWLYNABDYVNYWEQPTYDSE | MKJQAKTDPABBLMQAGABBGTFMQBEAKRQNKJUYNABLVMGEUKBFAKIQBDUVNWEQPTYDUBJWLYNABDYVNYWEQPTYDSE | TWO ROADS DIVERGED IN A YELLOW WOOD AND SORRY I COULD NOT TRAVEL BOTH AND BE ONE TRAVELER | fractionated_morse | fractionated_morse | fractionation | {
"type": "keyword",
"value": "LIBERTY"
} | advanced | en | 87 | 87 | cipher_museum | 2.0 | public | null | null |
cda-0013223 | BE / TKIN / MA-E / MA-E / TKIN / DZEH / WOL-LA-CHEE / TSAH / BE / LIN / DZEH / DIBEH-YAZZIE / DIBEH-YAZZIE / NA-AS-TSO-SI / WOL-LA-CHEE / TSAH / TKIN / TSAH / THAN-ZIE / GAH / A-KHA / BE / NO-DA-IH / MOASI / DZEH / BE ... | BE / TKIN / MA-E / MA-E / TKIN / DZEH / WOL-LA-CHEE / TSAH / BE / LIN / DZEH / DIBEH-YAZZIE / DIBEH-YAZZIE / NA-AS-TSO-SI / WOL-LA-CHEE / TSAH / TKIN / TSAH / THAN-ZIE / GAH / A-KHA / BE / NO-DA-IH / MOASI / DZEH / BE ... | DIFFIE AND HELLMAN INTRODUCED PUBLIC KEY CRYPTOGRAPHY IN NINETEEN SEVENTY SIX BRUTE FORCE WORKS ONLY WHEN THE KEY SPACE IS SMALL FREQUENCY ANALYSIS CAN REVEAL WEAK CIPHERS CERTAINLY | navajo_code | navajo_code | null | {} | hard | en | 218 | 218 | synthetic_educational | null | null | [
"codebook_frequency",
"word_list_attack"
] | Navajo Code Talker cipher: Navajo words represent English letters. |
columnar-transposition-184 | VIEUNRODETHZMTDAGNSI | VIEUNRODETHZMTDAGNSI | RENDEZVOUS AT MIDNIGHT | columnar_transposition | columnar_transposition | transposition | {
"type": "keyword",
"value": "KEYWORD"
} | intermediate | en | 20 | 20 | cipher_museum | 0.2 | public | null | null |
monoalphabetic-v3-1012 | VBWR DKOQ CR LPKMCR W HWJ RK AWCJ RBO VBKGO VKPGD WJD YOR GKQO BCQ KVJ CHHKPRWG QKTG MKPOUOP | VBWR DKOQ CR LPKMCR W HWJ RK AWCJ RBO VBKGO VKPGD WJD YOR GKQO BCQ KVJ CHHKPRWG QKTG MKPOUOP | WHAT DOES IT PROFIT A MAN TO GAIN THE WHOLE WORLD AND YET LOSE HIS OWN IMMORTAL SOUL FOREVER | monoalphabetic | monoalphabetic | substitution | {
"type": "keyword",
"value": "WISDOM"
} | beginner | en | 74 | 92 | cipher_museum | 2.0 | public | null | null |
stager-route-v3-0031 | SEBLRONTEXYSOAXXSFLSXXEIBMX | SEBLRONTEXYSOAXXSFLSXXEIBMX | SONS OF LIBERTY ASSEMBLE | stager_route | stager_route | transposition | {
"type": "integer",
"value": 9
} | expert | en | 27 | 27 | cipher_museum | 2.0 | public | null | null |
affine-de-073 | WV XWCUCP UZEVXC CPGLIPC WSR XWC HCWVXUCLWMGCWZCV HEP NCCVXCZ | WV XWCUCP UZEVXC CPGLIPC WSR XWC HCWVXUCLWMGCWZCV HEP NCCVXCZ | IN DIESER STUNDE ERKLARE ICH DIE FEINDSELIGKEITEN FUR BEENDET | affine | affine | substitution | {
"type": "keyword",
"value": "5,8"
} | beginner | de | 53 | 61 | cipher_museum | 0.2 | public | null | null |
cda-0020395 | MOIP CCFN TMTV CGLW YSHN UKPD WBIA LKSM LVWX VKZW IDWS BTRG HOJP QIFO EHRO BGQE GLCW VNCB AYXU XHVM LGLT CVYZ WKTO FW | MOIP CCFN TMTV CGLW YSHN UKPD WBIA LKSM LVWX VKZW IDWS BTRG HOJP QIFO EHRO BGQE GLCW VNCB AYXU XHVM LGLT CVYZ WKTO FW | THE PLAYFAIR CIPHER ENCRYPTS PAIRS OF LETTERS SIMULTANEOUSLY BRUTE FORCE WORKS ONLY WHEN THE KEY SPACE IS SMALL | running_key | running_key | null | {} | hard | en | 94 | 94 | synthetic_educational | null | null | [
"index_of_coincidence",
"probable_plaintext"
] | Running-key cipher: Vigenère with a very long key (e.g. a book passage). |
solitaire-061 | SNZSTCXLZQNZ | SNZSTCXLZQNZ | ATTACK AT DAWN | solitaire | solitaire | stream | {
"type": "passphrase",
"value": "CRYPTONOMICON"
} | expert | en | 12 | 12 | cipher_museum | 0.2 | public | null | null |
cda-0018091 | 44 23 15 21 34 45 42 43 41 45 11 42 15 13 24 35 23 15 42 45 43 15 43 44 52 34 25 15 54 52 34 42 14 35 34 31 54 12 24 45 43 43 41 45 11 42 15 43 35 15 15 42 42 15 51 24 15 52 11 33 14 42 15 35 42 34 14 45 13 24 12 24 31 24 44 54 32 11 44 44 15 42 24 33 42 15 43 15 11 42 13 23 44 34 32 34 42 42 34 52 | 44 23 15 21 34 45 42 43 41 45 11 42 15 13 24 35 23 15 42 45 43 15 43 44 52 34 25 15 54 52 34 42 14 35 34 31 54 12 24 45 43 43 41 45 11 42 15 43 35 15 15 42 42 15 51 24 15 52 11 33 14 42 15 35 42 34 14 45 13 24 12 24 31 24 44 54 32 11 44 44 15 42 24 33 42 15 43 15 11 42 13 23 44 34 32 34 42 42 34 52 | THE FOUR SQUARE CIPHER USES TWO KEYWORD POLYBIUS SQUARES PEER REVIEW AND REPRODUCIBILITY MATTER IN RESEARCH TOMORROW | polybius | polybius | null | {} | hard | en | 100 | 100 | synthetic_educational | null | null | [
"pair_decode",
"frequency_analysis"
] | Polybius square: 5×5 grid maps letters to two-digit row-column pairs. |
atbash-v3-0029 | GSV IVWXLZGH ZIV XLNRMT | GSV IVWXLZGH ZIV XLNRMT | THE REDCOATS ARE COMING | atbash | atbash | substitution | {
"type": "none",
"value": null
} | beginner | en | 20 | 23 | cipher_museum | 2.0 | public | null | null |
rail-fence-v3-0408 | URVODGFNBSLFOAEMULWGEEOABOEOTTEMGTRSRANRBRGUTPCSRCBKHOAORIMSEETDRLANLRENDWTLANOBTAOLIEEAAEVNWANOPSHHTANGTPLNAIOEIIENEEETTICYLANEBVNTROSCCAELHEISTGYETNAIORTDLLEARETUE | URVODGFNBSLFOAEMULWGEEOABOEOTTEMGTRSRANRBRGUTPCSRCBKHOAORIMSEETDRLANLRENDWTLANOBTAOLIEEAAEVNWANOPSHHTANGTPLNAIOEIIENEEETTICYLANEBVNTROSCCAELHEISTGYETNAIORTDLLEARETUE | ULTRA INTELLIGENCE FROM BLETCHLEY PARK GAVE THE ALLIES AN ENORMOUS ADVANTAGE IN WORLD WAR TWO BY REVEALING GERMAN INTENTIONS BEFORE OPERATIONS BEGAN BUT THE SOURCE HAD TO BE PROTECTED AT ALL COSTS | rail_fence | rail_fence | transposition | {
"type": "integer",
"value": 10
} | intermediate | en | 165 | 165 | cipher_museum | 2.0 | public | null | null |
gronsfeld-037 | JJZFRHMMCJUUCPWJJZFRHEIBYKTEJISBXSNFLLFSUZ | JJZFRHMMCJUUCPWJJZFRHEIBYKTEJISBXSNFLLFSUZ | GIVE ME LIBERTY OR GIVE ME DEATH SAID PATRICK HENRY | gronsfeld | gronsfeld | polyalphabetic | {
"type": "numeric",
"value": "31415"
} | intermediate | en | 42 | 42 | cipher_museum | 0.2 | public | null | null |
m209-v3-0416 | JWZFXRQSDPNPUZDMIWXAXKBRYLPQQVQALXASBPLKHMWLZZIPQWQYLYZRYXYWKFBABLGNNZCJUPJLESZJOWMRJWBLVPKATUWVYPBYQZMLFYYMLBKADSVQWIWZYZYQLVLWBKPYRISYNPIMEWYRKOHWOWDAOBSAILBKACNVYHNVRHCLRRZPL | JWZFXRQSDPNPUZDMIWXAXKBRYLPQQVQALXASBPLKHMWLZZIPQWQYLYZRYXYWKFBABLGNNZCJUPJLESZJOWMRJWBLVPKATUWVYPBYQZMLFYYMLBKADSVQWIWZYZYQLVLWBKPYRISYNPIMEWYRKOHWOWDAOBSAILBKACNVYHNVRHCLRRZPL | THE VENONA PROJECT WHICH RAN FROM NINETEEN FORTY THREE TO NINETEEN EIGHTY DECRYPTED THOUSANDS OF SOVIET INTELLIGENCE MESSAGES REVEALING THE IDENTITIES OF NUMEROUS AGENTS WHO HAD PENETRATED THE US GOVERNMENT | m209 | m209 | machine | {
"type": "seed",
"value": "VICTORY"
} | expert | en | 177 | 177 | cipher_museum | 2.0 | public | null | null |
cda-0004413 | TXCIUBLNSCNEESNECHOISLSECBOCTSPSMLEFDACEEEENEETABAAICEULRVCFFTCUTEKINONSUVIOOIHTDTFIMDICEEADMRDEIIEONSENEFOBEEEEDVERRGX | TXCIUBLNSCNEESNECHOISLSECBOCTSPSMLEFDACEEEENEETABAAICEULRVCFFTCUTEKINONSUVIOOIHTDTFIMDICEEADMRDEIIEONSENEFOBEEEEDVERRGX | THE INDEX OF COINCIDENCE IS A USEFUL CLUE OBSERVABLE EVIDENCE COMES BEFORE CONFIDENCE THE DETECTIVE STUDIES PATTERNS BEFORE MAKING CLAIMS | scytale | scytale | null | {
"cols": 7
} | hard | en | 119 | 119 | synthetic_educational | null | null | [
"column_count_search",
"anagram_recovery"
] | Scytale: Spartan cylinder cipher — wrap text around a rod of fixed diameter. |
scytale-v2-0250 | URENNCNNHLIRDZEFOATVMIENIPSREACRTRESADNADRMRUIFETIAIACNRNEVTNTCTOISIEGIEEMGTSDTOELDMHIAHNDLEAAOTEFEICTTNCDODGRRESAERXEYANALCTXNPFERAEIXCTFMEIPTXEEIYCSTUXDDCPOCIDXEGIANOOEX | URENNCNNHLIRDZEFOATVMIENIPSREACRTRESADNADRMRUIFETIAIACNRNEVTNTCTOISIEGIEEMGTSDTOELDMHIAHNDLEAAOTEFEICTTNCDODGRRESAERXEYANALCTXNPFERAEIXCTFMEIPTXEEIYCSTUXDDCPOCIDXEGIANOOEX | ULTRA INTELLIGENCE DERIVED FROM DECRYPTED GERMAN ENIGMA TRAFFIC INDICATES THAT ENEMY PANZER DIVISIONS ARE CONCENTRATED AT CALAIS CONFIRMING THE DECEPTION OPERATION FORTITUDE HAS SUCCEEDED | scytale | scytale | transposition | {
"type": "integer",
"value": 9
} | intermediate | en | 171 | 171 | cipher_museum | 2.0 | public | null | null |
slidex-v2-0094 | UFJQEMRABUOFCOFLKBZULGFQWRCYTUEGDOYPXPCOTUJBAMKWGLLNVHCMDOJQRBPWTIASZZSYRUIPEDZJKBML | UFJQEMRABUOFCOFLKBZULGFQWRCYTUEGDOYPXPCOTUJBAMKWGLLNVHCMDOJQRBPWTIASZZSYRUIPEDZJKBML | CODED TRANSMISSION INDICATES ENEMY FORCES ASSEMBLING ALONG THE BORDER WITH HEAVY ARTILLERY UNITS | slidex | slidex | transposition | {
"type": "keyword",
"value": "BLETCHLEY"
} | advanced | en | 84 | 84 | cipher_museum | 2.0 | public | null | null |
two-square-v2-0022 | BKVIHACKDCONQULU | BKVIHACKDCONQULU | DIVIDE AND CONQUER | two_square | two_square | polygraphic | {
"key1": "PALACE",
"key2": "BATTLE"
} | advanced | en | 16 | 16 | cipher_museum | 2.0 | public | null | null |
pigpen-v2-0036 | ¬• ┐ ┴ ┼ ┐• ╳ ▽ ┤• ┐• ├ ┼ ⌐ ╳ ┬ | ¬• ┐ ┴ ┼ ┐• ╳ ▽ ┤• ┐• ├ ┼ ⌐ ╳ ┬ | LIBERTY OR DEATH | pigpen | pigpen | substitution | {
"type": "none",
"value": null
} | beginner | en | 18 | 31 | cipher_museum | 2.0 | public | null | null |
cda-0010230 | QDSGQNQRMZLUP CBFLPRK NFUBCIPYF JOAPYNR YKABOKQ CYSQJWQAZLUP BBOBTTV EWR ZCAWNJFL ORYOPQFRAYM FXDFQY MBIDIE AWUNOCQ JXF KSBAKUB QVTWURJBKFV XWWRA CENAJBOQ PLWDDSHQ UR HMDMELLFXZ AUQQSDEX | QDSGQNQRMZLUP CBFLPRK NFUBCIPYF JOAPYNR YKABOKQ CYSQJWQAZLUP BBOBTTV EWR ZCAWNJFL ORYOPQFRAYM FXDFQY MBIDIE AWUNOCQ JXF KSBAKUB QVTWURJBKFV XWWRA CENAJBOQ PLWDDSHQ UR HMDMELLFXZ AUQQSDEX | TRANSPOSITION CIPHERS REARRANGE LETTERS WITHOUT SUBSTITUTION DIGRAPH AND TRIGRAPH FREQUENCIES EXPOSE SIMPLE CIPHERS THE KASISKI EXAMINATION FINDS REPEATED TRIGRAMS IN CIPHERTEXT TOMORROW | beaufort | beaufort | null | {
"key": "JUSTICE"
} | hard | en | 165 | 165 | synthetic_educational | null | null | [] | |
cda-0020365 | final range incur enemy depth march alert needs exact shore turns input march after track enter draft knife exact years leads eight night given takes | final range incur enemy depth march alert needs exact shore turns input march after track enter draft knife exact years leads eight night given takes | FRIEDMAN ESTIMATED KEY LENGTH FROM STATISTICS THE VIGENERE CIPHER USES A REPEATING KEYWORD | 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. |
argenti-v3-0147 | 16 83 75 22 28 71 20 67 83 84 20 41 65 83 32 34 26 20 63 56 77 64 | 16 83 75 22 28 71 20 67 83 84 20 41 65 83 32 34 26 20 63 56 77 64 | MESSAGE RECEIVED CLEARLY | argenti | argenti | nomenclator | {
"type": "seed",
"value": "PAPAL"
} | expert | en | 44 | 65 | cipher_museum | 2.0 | public | null | null |
cda-0013353 | CMSM QAJD REBP LNMD ATAE LDEG KOFR DMCQ JXMY VBNN XFIO VAIE KZYT ADCC DUOR CXHE SMQP VQNY MFDO TOLA BSPF GHPD SCZG W | CMSM QAJD REBP LNMD ATAE LDEG KOFR DMCQ JXMY VBNN XFIO VAIE KZYT ADCC DUOR CXHE SMQP VQNY MFDO TOLA BSPF GHPD SCZG W | PEER REVIEW AND REPRODUCIBILITY MATTER IN RESEARCH DOUBLE TRANSPOSITION APPLIES COLUMNAR ENCRYPTION TWICE | vernam | vernam | null | {} | hard | en | 93 | 93 | synthetic_educational | null | null | [
"key_reuse_attack",
"information_theoretic_proof"
] | Vernam cipher: XOR-based stream cipher; with a random key equivalent to OTP. |
adfgx-v2-0121 | GAAGDXAFADFDGXAGAFAFDFXFXFGD | GAAGDXAFADFDGXAGAFAFDFXFXFGD | STORM THE BREACH | adfgx | adfgx | fractionation | {
"polybius": "LIBERTY",
"columnar": "FREEDOM"
} | advanced | en | 28 | 28 | cipher_museum | 2.0 | public | null | null |
hill-v2-0036 | VQXMQXMSOJMIOX | VQXMQXMSOJMIOX | LIBERTY OR DEATH | hill | hill | polygraphic | {
"a": 3,
"b": 5,
"c": 2,
"d": 9
} | advanced | en | 14 | 14 | cipher_museum | 2.0 | public | null | null |
typex-v2-0184 | VZOGYXDWDVPNKHASHYHEHKHYXCQDIEBOHRTTMJAZQZTIBUBAIGIGVWXDOVRPUHLMEDYV | VZOGYXDWDVPNKHASHYHEHKHYXCQDIEBOHRTTMJAZQZTIBUBAIGIGVWXDOVRPUHLMEDYV | NEVER IN THE FIELD OF HUMAN CONFLICT WAS SO MUCH OWED BY SO MANY TO SO FEW BRAVE SOULS | typex | typex | machine | {
"type": "keyword",
"value": "BRITAIN"
} | expert | en | 68 | 68 | cipher_museum | 2.0 | public | null | null |
cda-0018062 | 857 823 813 999 801 862 859 844 832 813 874 999 807 826 845 821 813 852 999 814 870 858 814 841 810 856 999 857 823 814 999 831 813 874 999 867 825 858 821 999 858 822 812 999 847 833 800 824 839 858 813 869 857 999 826 857 856 813 833 817 999 810 843 999 841 844 859 999 808 842 839 816 862 854 812 999 842 803 816 860 ... | 857 823 813 999 801 862 859 844 832 813 874 999 807 826 845 821 813 852 999 814 870 858 814 841 810 856 999 857 823 814 999 831 813 874 999 867 825 858 821 999 858 822 812 999 847 833 800 824 839 858 813 869 857 999 826 857 856 813 833 817 999 810 843 999 841 844 859 999 808 842 839 816 862 854 812 999 842 803 816 860 ... | THE AUTOKEY CIPHER EXTENDS THE KEY WITH THE PLAINTEXT ITSELF DO NOT CONFUSE OBFUSCATION WITH ENCRYPTION FAIL CLOSED IS A POSTURE NOT A SLOGAN PEER REVIEW AND REPRODUCIBILITY MATTER IN RESEARCH | culper_ring | culper_ring | null | {} | hard | en | 162 | 162 | synthetic_educational | null | null | [
"codebook_frequency",
"number_range_analysis"
] | Culper Ring code: Washington's three-digit codebook numbers (800–999 range). |
straddling-checkerboard-042 | 2197670132490702576861255709021182153236521729842421329297248210183462393290227359609856 | 2197670132490702576861255709021182153236521729842421329297248210183462393290227359609856 | CRYPTOGRAPHY IS THE PRACTICE OF SECURING COMMUNICATIONS FROM ADVERSARIES | straddling_checkerboard | straddling_checkerboard | substitution | {
"type": "top_row",
"value": "ATONESIRE"
} | advanced | en | 88 | 88 | cipher_museum | 0.2 | public | null | null |
straddling-checkerboard-v2-0314 | 425222850218329763252270252202183251282865474164252229127224252922288222157468624022226701347202232076348282874142203 | 425222850218329763252270252202183251282865474164252229127224252922288222157468624022226701347202232076348282874142203 | THE LORD IS MY SHEPHERD I SHALL NOT WANT HE MAKETH ME LIE DOWN IN GREEN PASTURES BY STILL WATERS | straddling_checkerboard | straddling_checkerboard | substitution | {
"type": "top_row",
"value": "RASTONICEL"
} | advanced | en | 117 | 117 | cipher_museum | 2.0 | public | null | null |
cda-0016463 | r· X· ┌ ⌐ ─ ┌· L ⌐ Γ ⌐ ¬ └ L ┘· X· K ┐· X· K X r· ┘· X· └ Γ X r· ┘· ⌒ ⌐ └ └ ┌· L ⌐ X ┘· ─ Γ· ─ ¬· X K L ┐· X r· Γ· └ └ r Γ· ┐· r· L ┌· X· X L X └ Γ· ─ L ⌐ ┌· ⌐ └ ¬· L ¬ ┌· ⌐ K ┘· L ─ r ┌· ⌒· ┐· K ¬ └ ┘· r ┐ X ┘· ⌐· └ L K K L ┌· X ⌐· ⌐ Γ· └ r └ ┘· X L Γ Γ· X ⌐ ┐· ┘· X K X· ┌· L ─ ┘· K ⌐ X └ ┘· ¬· ⌐ ─ | r· X· ┌ ⌐ ─ ┌· L ⌐ Γ ⌐ ¬ └ L ┘· X· K ┐· X· K X r· ┘· X· └ Γ X r· ┘· ⌒ ⌐ └ └ ┌· L ⌐ X ┘· ─ Γ· ─ ¬· X K L ┐· X r· Γ· └ └ r Γ· ┐· r· L ┌· X· X L X └ Γ· ─ L ⌐ ┌· ⌐ └ ¬· L ¬ ┌· ⌐ K ┘· L ─ r ┌· ⌒· ┐· K ¬ └ ┘· r ┐ X ┘· ⌐· └ L K K L ┌· X ⌐· ⌐ Γ· └ r └ ┘· X L Γ Γ· X ⌐ ┐· ┘· X K X· ┌· L ─ ┘· K ⌐ X └ ┘· ¬· ⌐ ─ | HUMAN READABLE OUTPUT SHOULD SHOW ALL REASONING STEPS HILL CIPHER USES LINEAR ALGEBRA TO ENCRYPT BLOCKS OF LETTERS FAIL CLOSED IS A POSTURE NOT A SLOGAN | pigpen | pigpen | null | {} | medium | en | 50 | 50 | synthetic_educational | null | null | [
"symbol_frequency",
"grid_position_decode"
] | Pigpen cipher: letters encoded as positions in tic-tac-toe and X grids. |
adfgx-212 | AXFAAADFDGDGAGDXADGDXGGFGAXFGAAAAGGGGFGFAAAGADFAGAADXAAGFGDGFDDAXDGFAGDAFAFAAFAGGAGAGAFDDGFG | AXFAAADFDGDGAGDXADGDXGGFGAXFGAAAAGGGGFGFAAAGADFAGAADXAAGFGDGFDDAXDGFAGDAFAFAAFAGGAGAGAFDDGFG | I HAVE NOT YET BEGUN TO FIGHT SAID THE CAPTAIN TO THE CREW | adfgx | adfgx | fractionation | {
"polybius": "ENIGMA",
"columnar": "CRYPTO"
} | advanced | en | 92 | 92 | cipher_museum | 0.2 | public | null | null |
purple-v2-0245 | YFNZIHOWXXTYNXBZVLRRCACBBUWDAXJWTNEDIZLFDZYEWQUBNKZGMTWHMIGTIPAQVKXCXZFNFBCUYDKHYWTQGILKWQECWUAINFWISSTOVQSEMRAXATHJIQQONBIKUDZHIRAQCUJCHBRIJNFLQSAXIVAAURXITTNKAEYUBMNBQDMJTAH | YFNZIHOWXXTYNXBZVLRRCACBBUWDAXJWTNEDIZLFDZYEWQUBNKZGMTWHMIGTIPAQVKXCXZFNFBCUYDKHYWTQGILKWQECWUAINFWISSTOVQSEMRAXATHJIQQONBIKUDZHIRAQCUJCHBRIJNFLQSAXIVAAURXITTNKAEYUBMNBQDMJTAH | 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 | purple | purple | machine | {
"type": "seed",
"value": "YAMAMOTO"
} | expert | en | 175 | 175 | cipher_museum | 2.0 | public | null | null |
argenti-170 | 11 64 78 21 38 28 53 24 62 79 30 41 61 46 51 89 47 11 21 80 41 31 43 53 38 28 79 40 50 82 11 46 28 49 78 75 11 21 28 82 47 11 41 61 77 47 24 78 53 30 86 82 79 28 64 | 11 64 78 21 38 28 53 24 62 79 30 41 61 46 51 89 47 11 21 80 41 31 43 53 38 28 79 40 50 82 11 46 28 49 78 75 11 21 28 82 47 11 41 61 77 47 24 78 53 30 86 82 79 28 64 | THE ART OF WAR IS OF VITAL IMPORTANCE TO THE STATE IT IS LIFE OR DEATH | argenti | argenti | nomenclator | {
"type": "seed",
"value": "SECRET"
} | expert | en | 110 | 164 | cipher_museum | 0.2 | public | null | null |
kryha-v2-0216 | LQTNOZPYMXNHAFLLGHJEZCBTSEVNRVQRNDTMGFQYRLDHSCDMUDYXRCBLDMMMVEPEZFHJRRKKLAEI | LQTNOZPYMXNHAFLLGHJEZCBTSEVNRVQRNDTMGFQYRLDHSCDMUDYXRCBLDMMMVEPEZFHJRRKKLAEI | MARY QUEEN OF SCOTS WAS BEHEADED AFTER HER CIPHER LETTERS WERE DECODED BY THOMAS PHELIPPES | kryha | kryha | machine | {
"type": "keyword",
"value": "VIENNA"
} | expert | en | 76 | 76 | cipher_museum | 2.0 | public | null | null |
bifid-v3-0514 | RFWDTGRQDTLHARAWPXAEZ | RFWDTGRQDTLHARAWPXAEZ | THE EXPERIMENT CONFIRMS | bifid | bifid | fractionation | {
"type": "keyword",
"value": "TRIUMPH"
} | advanced | en | 21 | 21 | cipher_museum | 2.0 | public | null | null |
cardano-autokey-v3-0106 | HTFGKLALVLVJKQBABK | HTFGKLALVLVJKQBABK | CROSS THE RUBICON NOW | cardano_autokey | cardano_autokey | polyalphabetic | {
"type": "keyword",
"value": "FLORENCE"
} | advanced | en | 18 | 18 | cipher_museum | 2.0 | public | null | null |
typex-v2-0031 | EQTDRAKSOBBP | EQTDRAKSOBBP | VENI VIDI VICI | typex | typex | machine | {
"type": "keyword",
"value": "LONDON"
} | expert | en | 12 | 12 | cipher_museum | 2.0 | public | null | null |
cda-0021808 | XXRF URTI IONG KFGY JBXZ UCXH YNFJ MFBL ELKJ NOUP PRHI | XXRF URTI IONG KFGY JBXZ UCXH YNFJ MFBL ELKJ NOUP PRHI | THE RAIL FENCE CIPHER WRITES TEXT IN A ZIGZAG PATTERN | one_time_pad | one_time_pad | null | {} | medium | en | 44 | 44 | synthetic_educational | null | null | [
"information_theoretic_proof",
"key_reuse_attack"
] | One-time pad: theoretically unbreakable if key is truly random and never reused. |
cda-0015087 | 27 15 27 61 61 59 81 33 35 93 63 94 23 3 1 63 63 30 66 48 50 2 39 93 99 48 82 3 46 14 99 87 68 59 76 70 91 45 48 82 35 17 39 33 25 91 48 34 91 94 22 80 82 43 93 11 80 93 23 53 82 4 59 15 27 60 49 76 81 61 59 81 52 50 3 33 63 23 27 91 48 64 91 58 66 24 58 2 40 11 49 81 35 66 63 94 33 34 60 33 53 25 | 27 15 27 61 61 59 81 33 35 93 63 94 23 3 1 63 63 30 66 48 50 2 39 93 99 48 82 3 46 14 99 87 68 59 76 70 91 45 48 82 35 17 39 33 25 91 48 34 91 94 22 80 82 43 93 11 80 93 23 53 82 4 59 15 27 60 49 76 81 61 59 81 52 50 3 33 63 23 27 91 48 64 91 58 66 24 58 2 40 11 49 81 35 66 63 94 33 34 60 33 53 25 | AN AFFINE CIPHER APPLIES A LINEAR FUNCTION TO EACH LETTER THE KASISKI EXAMINATION FINDS REPEATED TRIGRAMS IN CIPHERTEXT | homophonic | homophonic | null | {} | hard | en | 102 | 102 | synthetic_educational | null | null | [
"frequency_analysis",
"multiple_ciphertext_attack"
] | Homophonic substitution: each letter maps to multiple possible numbers. |
cda-0012441 | AFTWTVTGNIXTRVESHDBVGNRMIMDVSWRCLBFBGUGLCPXRXXHJJHLHRIMKPHVFTIAVTXFVJKYAXDRWGUATXUURUQZBUMPRETLXIB | AFTWTVTGNIXTRVESHDBVGNRMIMDVSWRCLBFBGUGLCPXRXXHJJHLHRIMKPHVFTIAVTXFVJKYAXDRWGUATXUURUQZBUMPRETLXIB | AN AFFINE CIPHER APPLIES A LINEAR FUNCTION TO EACH LETTER ROUTE CIPHERS READ A GRID IN A PRESCRIBED GEOMETRIC PATTERN | running_key | running_key | null | {} | hard | en | 98 | 98 | synthetic_educational | null | null | [
"index_of_coincidence",
"probable_plaintext"
] | Running-key cipher: Vigenère with a very long key (e.g. a book passage). |
hill-002 | WNYCFRDPSY | WNYCFRDPSY | FLEE AT ONCE | hill | hill | polygraphic | {
"a": 3,
"b": 3,
"c": 2,
"d": 5
} | advanced | en | 10 | 10 | cipher_museum | 0.2 | public | null | null |
straddling-checkerboard-v3-0151 | 1615968726267241732385900769212843740232225232262696951425023299414703552355134324924386724232972562023147494632497412423 | 1615968726267241732385900769212843740232225232262696951425023299414703552355134324924386724232972562023147494632497412423 | IT IS A TRUTH UNIVERSALLY ACKNOWLEDGED THAT A SINGLE MAN IN POSSESSION OF A FORTUNE MUST BE IN WANT OF A WIFE | straddling_checkerboard | straddling_checkerboard | substitution | {
"type": "top_row",
"value": "LIONSTRACE"
} | advanced | en | 121 | 121 | cipher_museum | 2.0 | public | null | null |
joseon-yeokhak-v3-0003 | ZWUMEIAVWBJCQTBQVWVMLIG | ZWUMEIAVWBJCQTBQVWVMLIG | ROME WAS NOT BUILT IN ONE DAY | joseon_yeokhak | joseon_yeokhak | substitution | {
"type": "keyword",
"value": "SEOUL"
} | beginner | en | 23 | 23 | cipher_museum | 2.0 | public | null | null |
cda-0021506 | 20 8 5 2 9 6 9 4 3 9 16 8 5 18 3 15 13 2 9 14 5 19 1 16 15 12 25 2 9 21 19 19 17 21 1 18 5 23 9 20 8 20 18 1 14 19 16 15 19 9 20 9 15 14 20 8 5 5 14 9 7 13 1 13 1 3 8 9 14 5 21 19 5 4 18 15 20 15 18 19 20 15 3 18 5 1 20 5 1 16 15 12 25 1 12 16 8 1 2 5 20 9 3 3 9 16 8 5 18 16 15 12 25 2 9 21 19 5 14 3 15 4 5 4 12 5 20 2... | 20 8 5 2 9 6 9 4 3 9 16 8 5 18 3 15 13 2 9 14 5 19 1 16 15 12 25 2 9 21 19 19 17 21 1 18 5 23 9 20 8 20 18 1 14 19 16 15 19 9 20 9 15 14 20 8 5 5 14 9 7 13 1 13 1 3 8 9 14 5 21 19 5 4 18 15 20 15 18 19 20 15 3 18 5 1 20 5 1 16 15 12 25 1 12 16 8 1 2 5 20 9 3 3 9 16 8 5 18 16 15 12 25 2 9 21 19 5 14 3 15 4 5 4 12 5 20 2... | THE BIFID CIPHER COMBINES A POLYBIUS SQUARE WITH TRANSPOSITION THE ENIGMA MACHINE USED ROTORS TO CREATE A POLYALPHABETIC CIPHER POLYBIUS ENCODED LETTERS AS PAIRS OF NUMBERS FROM ONE TO FIVE | aeneas_tacticus | aeneas_tacticus | null | {} | hard | en | 160 | 160 | synthetic_educational | null | null | [
"sequential_number_decode",
"frequency_analysis"
] | Aeneas Tacticus: Greek sequential-number cipher; A=1…Z=26. |
m94-v2-0110 | KRXANZPORKPLEG | KRXANZPORKPLEG | STORM THE BREACH | m94 | m94 | machine | {
"type": "seed",
"value": "FREEDOM"
} | expert | en | 14 | 14 | cipher_museum | 2.0 | public | null | null |
lorenz-v3-0328 | TZEASUREBURIEDHERE | TZEASUREBURIEDHERE | TREASURE BURIED HERE | lorenz | lorenz | machine | {
"type": "seed",
"value": "BLETCHLEY"
} | expert | en | 18 | 18 | cipher_museum | 2.0 | public | null | null |
cda-0020431 | FEIJ IUNR GAIP QRTT SVMC DEYO GLFI TGFV TBWF MWGS VOPI GBKD AZAH MQAI WATK VFTD GDBS URPI GIAG TFLC EXVN USXI EJTT AXVJ EPUW NBLG NIXT WJHD JWLF WTPA GIDL SXRT LKFH MWRY EHCI YNPC Y | FEIJ IUNR GAIP QRTT SVMC DEYO GLFI TGFV TBWF MWGS VOPI GBKD AZAH MQAI WATK VFTD GDBS URPI GIAG TFLC EXVN USXI EJTT AXVJ EPUW NBLG NIXT WJHD JWLF WTPA GIDL SXRT LKFH MWRY EHCI YNPC Y | FRIEDMAN ESTIMATED KEY LENGTH FROM STATISTICS THE ENIGMA MACHINE USED ROTORS TO CREATE A POLYALPHABETIC CIPHER SECURITY CLAIMS SHOULD BE TESTED UNDER SCRUTINY CAREFULLY | running_key | running_key | null | {} | hard | en | 145 | 145 | synthetic_educational | null | null | [
"index_of_coincidence",
"probable_plaintext"
] | Running-key cipher: Vigenère with a very long key (e.g. a book passage). |
hill-v3-0009 | TSCBTFVBXIGEYOHX | TSCBTFVBXIGEYOHX | RENDER UNTO CAESAR | hill | hill | polygraphic | {
"a": 3,
"b": 5,
"c": 2,
"d": 9
} | advanced | en | 16 | 16 | cipher_museum | 2.0 | public | null | null |
cda-0014019 | 66 36 82 82 29 50 25 77 68 77 68 52 36 50 29 82 59 61 82 11 80 69 66 69 80 61 66 69 52 80 82 68 66 82 68 65 69 57 43 68 57 65 36 68 20 82 66 50 52 52 50 65 36 82 80 66 36 82 20 82 61 66 57 82 61 61 69 29 61 61 36 69 89 89 36 82 80 82 66 36 82 77 82 66 36 69 11 76 68 50 57 61 65 69 57 43 20 50 59 61 82 29 52 69 11 82 11... | 66 36 82 82 29 50 25 77 68 77 68 52 36 50 29 82 59 61 82 11 80 69 66 69 80 61 66 69 52 80 82 68 66 82 68 65 69 57 43 68 57 65 36 68 20 82 66 50 52 52 50 65 36 82 80 66 36 82 20 82 61 66 57 82 61 61 69 29 61 61 36 69 89 89 36 82 80 82 66 36 82 77 82 66 36 69 11 76 68 50 57 61 65 69 57 43 20 50 59 61 82 29 52 69 11 82 11... | THE ENIGMA MACHINE USED ROTORS TO CREATE A POLYALPHABETIC CIPHER THE BEST LESSONS SHOW WHERE THE METHOD FAILS POLYBIUS ENCODED LETTERS AS PAIRS OF NUMBERS FROM ONE TO FIVE KERCKHOFFS PRINCIPLE SAYS THE SYSTEM MUST BE SECURE EVEN IF ENEMY KNOWS ALGORITHM | wallis_cipher | wallis_cipher | null | {} | hard | en | 212 | 212 | synthetic_educational | null | null | [
"number_substitution_decode",
"frequency_analysis"
] | Wallis cipher: each letter mapped to a unique two-digit number from a fixed table. |
fialka-065 | BTQJSOTWYPONWCP | BTQJSOTWYPONWCP | THE COAST IS CLEAR | fialka | fialka | machine | {
"type": "seed",
"value": "CIPHER"
} | expert | en | 15 | 15 | cipher_museum | 0.2 | public | null | null |
adfgx-v2-0584 | GDFDDGAXDDFAGADDADGXDDGDADAXDGDDGGFXDDGDGGXFXXAXGGXGGXAAGDXGDGAADDFGGXGAADAGXGXDAAXDDGXAAAGAGAGAFXADFAGXDDADFGAXFXXAADGGGAGDFFFAGGGXDXFXADDXXGXDXAGDGGDDADDDGGXDAGGAXGXGDDDAADDAXADGAGADADGADXAADDGGXXGAFXFDDXDAGXAFAXDXDXDGADFXGAGDADDFDGXAXFGGXAXGGDXDGAADFGXDXXDDGDGAGAXGADGAXDXGXFFDXFDDDDXDGDGAGDDGAGGADDDDDAFDGGXDDADGFDXA... | GDFDDGAXDDFAGADDADGXDDGDADAXDGDDGGFXDDGDGGXFXXAXGGXGGXAAGDXGDGAADDFGGXGAADAGXGXDAAXDDGXAAAGAGAGAFXADFAGXDDADFGAXFXXAADGGGAGDFFFAGGGXDXFXADDXXGXDXAGDGGDDADDDGGXDAGGAXGXGDDDAADDAXADGAGADADGADXAADDGGXXGAFXFDDXDAGXAFAXDXDXDGADFXGAGDADDFDGXAXFGGXAXGGDXDGAADFGXDXXDDGDGAGAXGADGAXDXGXFFDXFDDDDXDGDGAGDDGAGGADDDDDAFDGGXDDADGFDXA... | ULTRA INTELLIGENCE DERIVED FROM DECRYPTED GERMAN ENIGMA TRAFFIC INDICATES THAT ENEMY PANZER DIVISIONS ARE CONCENTRATED AT CALAIS CONFIRMING THE DECEPTION OPERATION FORTITUDE HAS SUCCEEDED | adfgx | adfgx | fractionation | {
"polybius": "WISDOM",
"columnar": "COURAGE"
} | advanced | en | 328 | 328 | cipher_museum | 2.0 | public | null | null |
fractionated-morse-123 | MSUBNIRBPCASQCAIGUG | MSUBNIRBPCASQCAIGUG | THE EAGLE HAS LANDED | fractionated_morse | fractionated_morse | fractionation | {
"type": "keyword",
"value": "SECRET"
} | advanced | en | 19 | 19 | cipher_museum | 0.2 | public | null | null |
cda-0015166 | .- / ... - .-. --- -. --. / -.-. .-.. .- .. -- / -. . . -.. ... / ... - .-. --- -. --. / . ...- .. -.. . -. -.-. . / ..-. .- .. .-.. / -.-. .-.. --- ... . -.. / .. ... / .- / .--. --- ... - ..- .-. . / -. --- - / .- / ... .-.. --- --. .- -. / -. . ...- . .-. | .- / ... - .-. --- -. --. / -.-. .-.. .- .. -- / -. . . -.. ... / ... - .-. --- -. --. / . ...- .. -.. . -. -.-. . / ..-. .- .. .-.. / -.-. .-.. --- ... . -.. / .. ... / .- / .--. --- ... - ..- .-. . / -. --- - / .- / ... .-.. --- --. .- -. / -. . ...- . .-. | A STRONG CLAIM NEEDS STRONG EVIDENCE FAIL CLOSED IS A POSTURE NOT A SLOGAN NEVER | morse_code | morse_code | null | {} | medium | en | 66 | 66 | synthetic_educational | null | null | [
"symbol_decode",
"frequency_analysis"
] | Morse code: dots and dashes; word-separated by / symbol. |
cda-0017900 | 65 68 66 66 82 80 29 89 69 80 11 61 36 82 57 65 20 80 82 68 55 77 69 29 69 68 57 65 36 68 20 82 66 50 52 61 59 20 61 66 50 66 59 66 50 69 29 66 36 82 76 80 50 82 11 77 68 29 66 82 61 66 59 61 82 61 66 36 82 50 29 11 82 73 69 76 52 69 50 29 52 50 11 82 29 52 82 66 69 82 61 66 50 77 68 66 82 55 82 43 57 82 29 25 66 36 66... | 65 68 66 66 82 80 29 89 69 80 11 61 36 82 57 65 20 80 82 68 55 77 69 29 69 68 57 65 36 68 20 82 66 50 52 61 59 20 61 66 50 66 59 66 50 69 29 66 36 82 76 80 50 82 11 77 68 29 66 82 61 66 59 61 82 61 66 36 82 50 29 11 82 73 69 76 52 69 50 29 52 50 11 82 29 52 82 66 69 82 61 66 50 77 68 66 82 55 82 43 57 82 29 25 66 36 66... | PATTERN WORDS HELP BREAK MONOALPHABETIC SUBSTITUTION THE FRIEDMAN TEST USES THE INDEX OF COINCIDENCE TO ESTIMATE KEY LENGTH THE ONE TIME PAD IS THEORETICALLY UNBREAKABLE IF USED CORRECTLY | wallis_cipher | wallis_cipher | null | {} | hard | en | 160 | 160 | synthetic_educational | null | null | [
"number_substitution_decode",
"frequency_analysis"
] | Wallis cipher: each letter mapped to a unique two-digit number from a fixed table. |
m94-v3-0262 | CQTXLGXGSIKWHFPNKYDDYGPJITOQISZECBEYZDVMYEUJKZCPWXJROSMSHNHQIPBKPUTZKEQMNRJCNSXSQK | CQTXLGXGSIKWHFPNKYDDYGPJITOQISZECBEYZDVMYEUJKZCPWXJROSMSHNHQIPBKPUTZKEQMNRJCNSXSQK | HUMINT OR HUMAN INTELLIGENCE GATHERING RELIES ON PERSONAL CONTACT AND HUMAN SOURCES IN THE FIELD | m94 | m94 | machine | {
"type": "seed",
"value": "LIBERTY"
} | expert | en | 82 | 82 | cipher_museum | 2.0 | public | null | null |
adfgvx-v3-0019 | DDGVAGAGADDGADVGDDGVAAFGAADAAGGAGGFVAFVA | DDGVAGAGADDGADVGDDGVAAFGAADAAGGAGGFVAFVA | THE ALCHEMIST SUCCEEDS | adfgvx | adfgvx | fractionation | {
"polybius": "PALACE",
"columnar": "BATTLE"
} | advanced | en | 40 | 40 | cipher_museum | 2.0 | public | null | null |
affine-v2-0431 | WPWKS BUJMWO JWZUJTWR KUDQPG TUICJR GWTTSOHYJG MCDCFJS LCO MUPBQJKWR TLW BYFF OQGLTQPG | WPWKS BUJMWO JWZUJTWR KUDQPG TUICJR GWTTSOHYJG MCDCFJS LCO MUPBQJKWR TLW BYFF OQGLTQPG | ENEMY FORCES REPORTED MOVING TOWARD GETTYSBURG CAVALRY HAS CONFIRMED THE FULL SIGHTING | affine | affine | substitution | {
"a": 5,
"b": 2
} | beginner | en | 75 | 86 | cipher_museum | 2.0 | public | null | null |
porta-v3-0349 | JWXCSNODVKBTHTCVONI | JWXCSNODVKBTHTCVONI | THE TELESCOPE REVEALS | porta | porta | polyalphabetic | {
"type": "keyword",
"value": "VENICE"
} | intermediate | en | 19 | 19 | cipher_museum | 2.0 | public | null | null |
adfgvx-v3-0495 | AFAGFAAAAAFAFAFFFFVAADFDFFAFGGGDDVVGFFVVGXXVGGAGVDVDFGDVDFFFDDADGGGAAAAAAFADAAAFGDAAFDFVFGVFGGDGDDDGFDGVDDGDFFDGVDGDVDXVDGGFVVFDDDFGVXFVFDFGAAAAAFFAFFFAGDGFDAAFFGFDFAGF | AFAGFAAAAAFAFAFFFFVAADFDFFAFGGGDDVVGFFVVGXXVGGAGVDVDFGDVDFFFDDADGGGAAAAAAFADAAAFGDAAFDFVFGVFGGDGDDDGFDGVDDGDFFDGVDGDVDXVDGGFVVFDDDFGVXFVFDFGAAAAAFFAFFFAGDGFDAAFFGFDFAGF | SIGNALS INTELLIGENCE OR SIGINT INVOLVES INTERCEPTION AND ANALYSIS OF ELECTRONIC COMMUNICATIONS | adfgvx | adfgvx | fractionation | {
"polybius": "KAISER",
"columnar": "BERLIN"
} | advanced | en | 168 | 168 | cipher_museum | 2.0 | public | null | null |
confederate-vigenere-v2-0392 | HKSFWPHPLLMOPO | HKSFWPHPLLMOPO | PRESS THE ATTACK | confederate_vigenere | confederate_vigenere | polyalphabetic | {
"type": "keyword",
"value": "STONEWALL"
} | intermediate | en | 14 | 14 | cipher_museum | 2.0 | public | null | null |
red-type-a-v2-0273 | LSYHCMIFOHD | LSYHCMIFOHD | KNOW THYSELF | red_type_a | red_type_a | machine | {
"type": "keyword",
"value": "TOKYO"
} | advanced | en | 11 | 11 | cipher_museum | 2.0 | public | null | null |
jn25-v3-0124 | 09995 09903 09900 09992 09994 09906 09903 09901 09900 09993 09999 09992 | 09995 09903 09900 09992 09994 09906 09903 09901 09900 09993 09999 09992 | GOLD FROM LEAD | jn25 | jn25 | codebook | {
"type": "additive",
"value": "99999"
} | expert | en | 60 | 71 | cipher_museum | 2.0 | public | null | null |
monoalphabetic-v3-0260 | GL KLT BL BOKTIO EKTL TCDT BLLG KEBCT LIG DBO SCLUIG RUQK DKG QDVO DT AILSO LN GDY QDBO QDBO | GL KLT BL BOKTIO EKTL TCDT BLLG KEBCT LIG DBO SCLUIG RUQK DKG QDVO DT AILSO LN GDY QDBO QDBO | DO NOT GO GENTLE INTO THAT GOOD NIGHT OLD AGE SHOULD BURN AND RAVE AT CLOSE OF DAY RAGE RAGE | monoalphabetic | monoalphabetic | substitution | {
"type": "keyword",
"value": "DRAGON"
} | beginner | en | 73 | 92 | cipher_museum | 2.0 | public | null | null |
cardano-autokey-v3-0368 | BKRVCMAAGBRTTVTGRGBVFHXZRTBWBNNQQVVRXRLVVRTTVTGRGITVJHXZRTBWBGAVAMSWHLAGBABHXH | BKRVCMAAGBRTTVTGRGBVFHXZRTBWBNNQQVVRXRLVVRTTVTGRGITVJHXZRTBWBGAVAMSWHLAGBABHXH | GENIUS IS ONE PERCENT INSPIRATION AND NINETY NINE PERCENT PERSPIRATION THOMAS EDISON NOTED | cardano_autokey | cardano_autokey | polyalphabetic | {
"type": "keyword",
"value": "VENICE"
} | advanced | en | 78 | 78 | cipher_museum | 2.0 | public | null | null |
nihilist-v2-0044 | 35 47 96 56 55 37 64 34 75 59 46 27 55 66 88 75 46 30 64 33 59 67 48 57 36 56 69 59 44 57 43 27 56 88 38 58 65 37 59 95 25 28 52 24 78 88 47 30 72 27 86 88 25 58 65 27 66 59 25 59 46 33 89 88 48 49 35 27 | 35 47 96 56 55 37 64 34 75 59 46 27 55 66 88 75 46 30 64 33 59 67 48 57 36 56 69 59 44 57 43 27 56 88 38 58 65 37 59 95 25 28 52 24 78 88 47 30 72 27 86 88 25 58 65 27 66 59 25 59 46 33 89 88 48 49 35 27 | COWARDS DIE MANY TIMES BEFORE THEIR DEATHS THE VALIANT NEVER TASTE DEATH BUT ONCE | nihilist | nihilist | fractionation | {
"polybius": "PALACE",
"keyword": "BATTLE"
} | advanced | en | 136 | 203 | cipher_museum | 2.0 | public | null | null |
cda-0016257 | 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 32 34 14 15 42 33 15 33 13 42 54 35 44 24 34 33 24 43 33 34 44 12 42 34 25 15 33 12 54 31 15 44 44 15 42 21 42 15 41 45 15 33 13 54 | 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 32 34 14 15 42 33 15 33 13 42 54 35 44 24 34 33 24 43 33 34 44 12 42 34 25 15 33 12 54 31 15 44 44 15 42 21 42 15 41 45 15 33 13 54 | SUBSTITUTION CIPHERS MAP EACH LETTER TO A DIFFERENT LETTER MODERN ENCRYPTION IS NOT BROKEN BY LETTER FREQUENCY | polybius | polybius | null | {} | hard | en | 94 | 94 | synthetic_educational | null | null | [
"pair_decode",
"frequency_analysis"
] | Polybius square: 5×5 grid maps letters to two-digit row-column pairs. |
enigma-v2-0890 | QTMQDYHCUJVUHQQSSO | QTMQDYHCUJVUHQQSSO | ENEMY RETREATS NORTH | enigma | enigma | machine | {
"type": "rotor_start",
"value": "VWX"
} | expert | en | 18 | 18 | cipher_museum | 2.0 | public | null | null |
hill-v2-0489 | DMKCJGGTQYNDIOJKGVWDSMHTJGANAIRVDMUOPDXXGVEQYIMRXXZHPMEDKCTCJPMRLXZHGPAQDMSJRVGWBDLTEBRVLLURTRRXAQFRGWUSBAOMRVJXTPOYTFEHYOPHANWHPFEKUGYXRIKPWGDTEFQR | DMKCJGGTQYNDIOJKGVWDSMHTJGANAIRVDMUOPDXXGVEQYIMRXXZHPMEDKCTCJPMRLXZHGPAQDMSJRVGWBDLTEBRVLLURTRRXAQFRGWUSBAOMRVJXTPOYTFEHYOPHANWHPFEKUGYXRIKPWGDTEFQR | THE ART OF WAR IS OF VITAL IMPORTANCE TO THE STATE IT IS A MATTER OF LIFE AND DEATH A ROAD EITHER TO SAFETY OR TO RUIN HENCE IT IS A SUBJECT OF INQUIRY WHICH CAN ON NO ACCOUNT BE NEGLECTED | hill | hill | polygraphic | {
"a": 9,
"b": 2,
"c": 7,
"d": 5
} | advanced | en | 148 | 148 | cipher_museum | 2.0 | public | null | null |
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