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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
copiale-v3-0145 | I3 M4 D5 U2 N9 S0 K2 Q3 Z4 B6 S8 N5 Q2 I5 M2 F7 F6 P3 N2 Q2 F6 | I3 M4 D5 U2 N9 S0 K2 Q3 Z4 B6 S8 N5 Q2 I5 M2 F7 F6 P3 N2 Q2 F6 | THE TELEGRAPH TRANSMITS | copiale | copiale | substitution | {
"type": "keyword",
"value": "TEMPLE"
} | advanced | en | 42 | 62 | cipher_museum | 2.0 | public | null | null |
adfgx-v2-0087 | GXFGGXDDXGAADAXXXFDGXFGDGXXAGGFFFDADFFAAFAAAGGXAGAGGFADXDXDXXGXGXDXAAFGGGXXDDGGGAAAFGADGFGADDXADGAADGDGAXAADDFAXGGAAFAAAGGAAAXFAFAAFFDXGAAGGXXFDGXFDGXXDGXXXFG | GXFGGXDDXGAADAXXXFDGXFGDGXXAGGFFFDADFFAAFAAAGGXAGAGGFADXDXDXXGXGXDXAAFGGGXXDDGGGAAAFGADGFGADDXADGAADGDGAXAADDFAXGGAAFAAAGGAAAXFAFAAFFDXGAAGGXXFDGXFDGXXDGXXXFG | CLAUDE SHANNON PROVED THAT THE ONE TIME PAD ACHIEVES PERFECT SECRECY WHEN USED CORRECTLY ONCE | adfgx | adfgx | fractionation | {
"polybius": "PALACE",
"columnar": "BATTLE"
} | advanced | en | 158 | 158 | cipher_museum | 2.0 | public | null | null |
chaocipher-199 | SSSSTHXTFKUBBGXZ | SSSSTHXTFKUBBGXZ | NO PRISONERS TAKEN | chaocipher | chaocipher | machine | {
"type": "keyword",
"value": "MUSEUM"
} | advanced | en | 16 | 16 | cipher_museum | 0.2 | public | null | null |
trithemius-107 | VFPL ZNJP DRMT U POBU Z KTQ D YLLPUFTHH FRS QW K DUAUAU SSMNGA | VFPL ZNJP DRMT U POBU Z KTQ D YLLPUFTHH FRS QW K DUAUAU SSMNGA | VENI VIDI VICI I CAME I SAW I CONQUERED ALL IN A SINGLE BATTLE | trithemius | trithemius | polyalphabetic | {
"type": "offset",
"value": 0
} | beginner | en | 49 | 62 | cipher_museum | 0.2 | public | null | null |
kama-sutra-v2-0017 | OCMLM DLZZYHL JCEECKZ | OCMLM DLZZYHL JCEECKZ | CODED MESSAGE FOLLOWS | kama_sutra | kama_sutra | substitution | {
"type": "keyword",
"value": "SANSKRIT"
} | intermediate | en | 19 | 21 | cipher_museum | 2.0 | public | null | null |
nihilist-v2-0238 | 58 25 88 23 28 36 54 45 38 57 43 36 50 54 | 58 25 88 23 28 36 54 45 38 57 43 36 50 54 | STORM THE BREACH | nihilist | nihilist | fractionation | {
"polybius": "TRIUMPH",
"keyword": "JUSTICE"
} | advanced | en | 28 | 41 | cipher_museum | 2.0 | public | null | null |
scytale-v2-0396 | AATYINLXXXXWIMSGAXXXXX | AATYINLXXXXWIMSGAXXXXX | AWAIT MY SIGNAL | scytale | scytale | transposition | {
"type": "integer",
"value": 11
} | intermediate | en | 22 | 22 | cipher_museum | 2.0 | public | null | null |
fractionated-morse-v2-0040 | JMTFSLPXBCSLMTLHSDCSTFQCWOBCSD | JMTFSLPXBCSLMTLHSDCSTFQCWOBCSD | NORTH STAR HOLDS FIRM COURSE | fractionated_morse | fractionated_morse | fractionation | {
"type": "keyword",
"value": "PALACE"
} | advanced | en | 30 | 30 | cipher_museum | 2.0 | public | null | null |
confederate-vigenere-v2-0302 | JWLLRLOEBKRWAVMJPQXEUBFVKLAPCGKATMIWALZVREQPEWQPPEOTPICJWLLRLOEBXLTIUSUZLE | JWLLRLOEBKRWAVMJPQXEUBFVKLAPCGKATMIWALZVREQPEWQPPEOTPICJWLLRLOEBXLTIUSUZLE | GOOD NIGHT GOOD NIGHT PARTING IS SUCH SWEET SORROW THAT I SHALL SAY GOOD NIGHT TILL MORROW | confederate_vigenere | confederate_vigenere | polyalphabetic | {
"type": "keyword",
"value": "DIXIE"
} | intermediate | en | 74 | 74 | cipher_museum | 2.0 | public | null | null |
vic-v3-0358 | 9382690342898390871408390656869048168386908229382485293418536863952908548928283894938683554190685894918504129221 | 9382690342898390871408390656869048168386908229382485293418536863952908548928283894938683554190685894918504129221 | WHAT DOES IT PROFIT A MAN TO GAIN THE WHOLE WORLD AND YET LOSE HIS OWN IMMORTAL SOUL FOREVER | vic | vic | substitution | {
"type": "keyword",
"value": "FREEDOM"
} | advanced | en | 112 | 112 | cipher_museum | 2.0 | public | null | null |
cda-0006061 | OAOTS WASPW CUSEO CCYVS FOYWA ROETH AQGWB AGBSO QNYRG GRE | OAOTS WASPW CUSEO CCYVS FOYWA ROETH AQGWB AGBSO QNYRG GRE | AN AFFINE CIPHER APPLIES A LINEAR FUNCTION TO EACH LETTER | porta | porta | null | {
"key": "PATTERN"
} | medium | en | 48 | 48 | synthetic_educational | null | null | [
"kasiski_examination",
"index_of_coincidence"
] | Porta: 13-row table polyalphabetic cipher; reciprocal (encrypt = decrypt). |
cda-0017410 | ⌐ K ┌· ⌐ ─ X ┐· ⌐ ┌· L ─ K K ┘· ┘· └ X r· ┘· X· └ Γ X r· ┘· ⌒ Γ· K X ┌· L ⌐ X ┘· ─ Γ· ─ ¬· K r· L K ┌· Γ· K r· L ┌ Γ· X· X r Γ· ┐· r· L ┌· ⌐ Γ K· ⌐ ─ r L X K r· L ⌐ └ ┐· r· ⌐ ¬ L K ¬ ⌒· ┘· ─ L ┐· ┘· X Γ· K Γ· ┘· ─ L ⌐ r r· └ L K K L ┌· K r· L ⌐· ┘· X· ┌· X └· X· ⌐ ┌· L r Γ· ┐· r· L ┌· X· X L X K ⌒ ┘· ┐ L ⌒· ⌒ ┘· ┌· Γ ┐... | ⌐ K ┌· ⌐ ─ X ┐· ⌐ ┌· L ─ K K ┘· ┘· └ X r· ┘· X· └ Γ X r· ┘· ⌒ Γ· K X ┌· L ⌐ X ┘· ─ Γ· ─ ¬· K r· L K ┌· Γ· K r· L ┌ Γ· X· X r Γ· ┐· r· L ┌· ⌐ Γ K· ⌐ ─ r L X K r· L ⌐ └ ┐· r· ⌐ ¬ L K ¬ ⌒· ┘· ─ L ┐· ┘· X Γ· K Γ· ┘· ─ L ⌐ r r· └ L K K L ┌· K r· L ⌐· ┘· X· ┌· X └· X· ⌐ ┌· L r Γ· ┐· r· L ┌· X· X L X K ⌒ ┘· ┐ L ⌒· ⌒ ┘· ┌· Γ ┐... | A TRANSPARENT TOOL SHOULD SHOW ITS REASONING THE TRITHEMIUS CIPHER ADVANCES THE ALPHABET BY ONE POSITION EACH LETTER THE FOUR SQUARE CIPHER USES TWO KEYWORD POLYBIUS SQUARES THE PLAYFAIR CIPHER ENCRYPTS PAIRS OF LETTERS SIMULTANEOUSLY | pigpen | pigpen | null | {} | hard | en | 90 | 90 | synthetic_educational | null | null | [
"symbol_frequency",
"grid_position_decode"
] | Pigpen cipher: letters encoded as positions in tic-tac-toe and X grids. |
copiale-v2-0305 | O0 S9 V3 G0 R9 H0 A1 V7 J8 V3 H3 P3 U2 P5 O2 G3 V0 U2 G2 U6 I2 U0 A4 K6 V2 K8 N4 V8 D6 V7 A7 J6 D8 O7 W2 O9 O4 I0 J0 Y2 V2 J8 P6 U0 F7 G1 G3 R9 U9 K2 H3 M4 Q6 K6 H0 A4 Y0 G0 E3 E1 W2 U9 Q5 H0 J0 M1 A2 B8 A3 V2 W6 O7 U1 W5 V2 | O0 S9 V3 G0 R9 H0 A1 V7 J8 V3 H3 P3 U2 P5 O2 G3 V0 U2 G2 U6 I2 U0 A4 K6 V2 K8 N4 V8 D6 V7 A7 J6 D8 O7 W2 O9 O4 I0 J0 Y2 V2 J8 P6 U0 F7 G1 G3 R9 U9 K2 H3 M4 Q6 K6 H0 A4 Y0 G0 E3 E1 W2 U9 Q5 H0 J0 M1 A2 B8 A3 V2 W6 O7 U1 W5 V2 | ENEMY FORCES REPORTED MOVING TOWARD GETTYSBURG CAVALRY HAS CONFIRMED THE FULL SIGHTING | copiale | copiale | substitution | {
"type": "keyword",
"value": "MYSTERY"
} | advanced | en | 150 | 224 | cipher_museum | 2.0 | public | null | null |
vic-v2-0322 | 5843272187835888789088558879191791911877539092338730196723584947919287808893343812682478780191947091187838478618751863 | 5843272187835888789088558879191791911877539092338730196723584947919287808893343812682478780191947091187838478618751863 | THE BABINGTON PLOT TO ASSASSINATE QUEEN ELIZABETH WAS UNCOVERED BY FRANCIS WALSINGHAM IN TIME | vic | vic | substitution | {
"type": "keyword",
"value": "LIBERTY"
} | advanced | en | 118 | 118 | cipher_museum | 2.0 | public | null | null |
two-square-v2-0005 | CAWBLRWLBWCKCESX | CAWBLRWLBWCKCESX | CAVALRY ADVANCES | two_square | two_square | polygraphic | {
"key1": "PALACE",
"key2": "BATTLE"
} | advanced | en | 16 | 16 | cipher_museum | 2.0 | public | null | null |
great-cipher-136 | 118 131 106 148 167 163 158 126 164 181 123 | 118 131 106 148 167 163 158 126 164 181 123 | SEND REINFORCEMENTS | great_cipher | great_cipher | nomenclator | {
"type": "seed",
"value": "SECRET"
} | expert | en | 33 | 43 | cipher_museum | 0.2 | public | null | null |
cda-0007074 | GVS IVTRASES QVCUSE HFRF O ESCNOGVAU NNLJBER CNRE ESIWNJ OAR ESCEBRHQWPVYVGL ZOGGNE WA ERFNOEQU GUN YOFVFXV SKOZVAOGWBA SVARF ENCROGSR GEVTEOZF VA QWCVNEGNKG FHNFGWGHGVBA QWCUREF ZOC NONU NSGGRE GB O RVSSNESAG YRGGSE | GVS IVTRASES QVCUSE HFRF O ESCNOGVAU NNLJBER CNRE ESIWNJ OAR ESCEBRHQWPVYVGL ZOGGNE WA ERFNOEQU GUN YOFVFXV SKOZVAOGWBA SVARF ENCROGSR GEVTEOZF VA QWCVNEGNKG FHNFGWGHGVBA QWCUREF ZOC NONU NSGGRE GB O RVSSNESAG YRGGSE | THE VIGENERE CIPHER USES A REPEATING KEYWORD PEER REVIEW AND REPRODUCIBILITY MATTER IN RESEARCH THE KASISKI EXAMINATION FINDS REPEATED TRIGRAMS IN CIPHERTEXT SUBSTITUTION CIPHERS MAP EACH LETTER TO A DIFFERENT LETTER | porta | porta | null | {
"key": "JUSTICE"
} | hard | en | 186 | 186 | synthetic_educational | null | null | [] | |
great-cipher-021 | 164 152 102 101 113 168 110 152 177 131 130 106 132 | 164 152 102 101 113 168 110 152 177 131 130 106 132 | THE BRIDGE IS SECURED | great_cipher | great_cipher | nomenclator | {
"type": "seed",
"value": "LOUIS"
} | expert | en | 39 | 51 | cipher_museum | 0.2 | public | null | null |
adfgx-v2-0147 | GXAADADDXFGDFFDDXXXXAADDDFDXFXFFFGAGGA | GXAADADDXFGDFFDDXXXXAADDDFDXFXFFFGAGGA | WISDOM GUARDS THE GATE | adfgx | adfgx | fractionation | {
"polybius": "LIBERTY",
"columnar": "FREEDOM"
} | advanced | en | 38 | 38 | cipher_museum | 2.0 | public | null | null |
cda-0013658 | 800 835 802 840 999 857 860 853 825 840 818 999 803 853 844 832 812 999 812 840 824 818 837 801 999 866 824 857 821 999 807 851 825 804 854 999 801 840 809 999 858 822 814 999 803 844 838 804 813 999 838 802 806 822 824 841 813 999 | 800 835 802 840 999 857 860 853 825 840 818 999 803 853 844 832 812 999 812 840 824 818 837 801 999 866 824 857 821 999 807 851 825 804 854 999 801 840 809 999 858 822 814 999 803 844 838 804 813 999 838 802 806 822 824 841 813 999 | ALAN TURING BROKE ENIGMA WITH CRIBS AND THE BOMBE MACHINE | culper_ring | culper_ring | null | {} | medium | en | 48 | 48 | synthetic_educational | null | null | [
"codebook_frequency",
"number_range_analysis"
] | Culper Ring code: Washington's three-digit codebook numbers (800–999 range). |
kl7-v3-0114 | WFEYOBRQOGPIMCCO | WFEYOBRQOGPIMCCO | PER ASPERA AD ASTRA | kl7 | kl7 | machine | {
"type": "seed",
"value": "LIBERTY"
} | expert | en | 16 | 16 | cipher_museum | 2.0 | public | null | null |
cda-0017851 | 01942 5708 1570 05434 06619 1636 4416 1000 7904 00385 04495 00321 03783 7912 5971 02879 06050 1015 0361 4415 05682 01602 6953 1616 0399 03779 7262 1597 0388 03544 1001 2849 5063 02570 01668 05738 06004 5667 4795 06647 06373 1619 0954 02833 05036 2523 01619 05680 05995 05699 01646 00363 1261 00338 02289 05659 2921 1340 ... | 01942 5708 1570 05434 06619 1636 4416 1000 7904 00385 04495 00321 03783 7912 5971 02879 06050 1015 0361 4415 05682 01602 6953 1616 0399 03779 7262 1597 0388 03544 1001 2849 5063 02570 01668 05738 06004 5667 4795 06647 06373 1619 0954 02833 05036 2523 01619 05680 05995 05699 01646 00363 1261 00338 02289 05659 2921 1340 ... | FREQUENCY ANALYSIS CAN REVEAL WEAK CIPHERS ROUTE CIPHERS READ A GRID IN A PRESCRIBED GEOMETRIC PATTERN | zimmermann | zimmermann | null | {} | hard | en | 87 | 87 | synthetic_educational | null | null | [
"codebook_frequency",
"number_group_analysis"
] | Zimmermann Telegram code: WWI German diplomatic numeric codebook cipher. |
cda-0005849 | ESMSNHMECCATOFMLCYSVYNAEROROTNENUETUSXESENSEDRRIDCANNORTXRTEHTAEORODTRDTSEEXYEDOTTLRENEIEAAESMX | ESMSNHMECCATOFMLCYSVYNAEROROTNENUETUSXESENSEDRRIDCANNORTXRTEHTAEORODTRDTSEEXYEDOTTLRENEIEAAESMX | EVERY SYSTEM NEEDS AN HONEST THREAT MODEL ERROR CORRECTION AND DETECTION ARE FUNDAMENTAL TO SECURE SYSTEMS | scytale | scytale | null | {
"cols": 5
} | hard | en | 95 | 95 | synthetic_educational | null | null | [
"column_count_search",
"anagram_recovery"
] | Scytale: Spartan cylinder cipher — wrap text around a rod of fixed diameter. |
playfair-v2-1005 | CPOGOQCPFTLEPHHNSFODCAZXIKIDPWCPFBODEYFOMUSGOICAWRWGALCTZRXBOMPNWCKRIFAEIROD | CPOGOQCPFTLEPHHNSFODCAZXIKIDPWCPFBODEYFOMUSGOICAWRWGALCTZRXBOMPNWCKRIFAEIROD | ONCE UPON A MIDNIGHT DREARY WHILE I PONDERED WEAK AND WEARY OVER MANY A QUAINT VOLUME OF LORE | playfair | playfair | polygraphic | {
"type": "keyword",
"value": "COURAGE"
} | intermediate | en | 76 | 76 | cipher_museum | 2.0 | public | null | null |
wheatstone-v2-0126 | VRQHRKRJKDRJAQHRSIYQRGOQTQROYIJNGRNQJAJNFTFJNRKRNARLQSIYJIROQTEDYOHBSOQYLRYIOSNRGJFROQYLQNTIMSYDYQXKNJUYGRAJNQHRLJFFJIGRARIORKNJFJQRQHRPRIRNTDVRDATNRTIGORLSNRQHREDROOYIPOJADYERNQX | VRQHRKRJKDRJAQHRSIYQRGOQTQROYIJNGRNQJAJNFTFJNRKRNARLQSIYJIROQTEDYOHBSOQYLRYIOSNRGJFROQYLQNTIMSYDYQXKNJUYGRAJNQHRLJFFJIGRARIORKNJFJQRQHRPRIRNTDVRDATNRTIGORLSNRQHREDROOYIPOJADYERNQX | WE THE PEOPLE OF THE UNITED STATES IN ORDER TO FORM A MORE PERFECT UNION ESTABLISH JUSTICE INSURE DOMESTIC TRANQUILITY PROVIDE FOR THE COMMON DEFENSE PROMOTE THE GENERAL WELFARE AND SECURE THE BLESSINGS OF LIBERTY | wheatstone | wheatstone | polygraphic | {
"type": "keyword",
"value": "TELEGRAPHY"
} | advanced | en | 179 | 179 | cipher_museum | 2.0 | public | null | null |
jefferson-disk-v2-0174 | GPIVKULHVYGKIIAHQJRFIKEDZNVZYUPAYKJXAZIDICDXQQJUAAIMXYIDYYFUDTIPXQIOGKUMRRAV | GPIVKULHVYGKIIAHQJRFIKEDZNVZYUPAYKJXAZIDICDXQQJUAAIMXYIDYYFUDTIPXQIOGKUMRRAV | BLESSED ARE THE PURE IN HEART FOR THEY SHALL SEE GOD AND BLESSED ARE THE PEACEMAKERS AMONG US | jefferson_disk | jefferson_disk | disk | {
"type": "disk_order",
"value": "6,1,4,2,5,3"
} | expert | en | 76 | 76 | cipher_museum | 2.0 | public | null | null |
cda-0019912 | ASTRO NGCLA IMNEE DSSTX ONGEV IDENC ETOMO RROWC | ASTRO NGCLA IMNEE DSSTX ONGEV IDENC ETOMO RROWC | A STRONG CLAIM NEEDS STRONG EVIDENCE TOMORROW | commercial_code | commercial_code | null | {} | medium | en | 40 | 40 | synthetic_educational | null | null | [
"codebook_frequency",
"five_letter_group_analysis"
] | Commercial code: five-letter groups from a codebook, often ending in X or Z. |
m209-v2-0220 | BPBBZJLEQIRULJXNPVRZVADJYNBRYPEZNMZYKEIKATBSVPXDTOPWLWBANMZXNGTLXVYDIDEMJXRSYMFIOVML | BPBBZJLEQIRULJXNPVRZVADJYNBRYPEZNMZYKEIKATBSVPXDTOPWLWBANMZXNGTLXVYDIDEMJXRSYMFIOVML | CODED TRANSMISSION INDICATES ENEMY FORCES ASSEMBLING ALONG THE BORDER WITH HEAVY ARTILLERY UNITS | m209 | m209 | machine | {
"type": "seed",
"value": "FREEDOM"
} | expert | en | 84 | 84 | cipher_museum | 2.0 | public | null | null |
columnar-transposition-v3-0150 | CRTRHYERAATSOFO | CRTRHYERAATSOFO | THE FACTORY ROARS | columnar_transposition | columnar_transposition | transposition | {
"type": "keyword",
"value": "FORTRESS"
} | intermediate | en | 15 | 15 | cipher_museum | 2.0 | public | null | null |
bazeries-269 | RCIJDDTGVJYQTNDP | RCIJDDTGVJYQTNDP | LOCK DOWN ALL GATES | bazeries | bazeries | transposition | {
"type": "integer",
"value": 31
} | advanced | en | 16 | 16 | cipher_museum | 0.2 | public | null | null |
geheimschreiber-v2-0233 | QBRGAPOIRYZOESQPKWDVSFQHDNSNXNQEATPCKLVSEFZTKLCQGIKNZYCVAXFHPXBXUOXTVPZFZKHQAGGEJZWNUUGLVENKAHGTHQRITTBOSMVURGLUTTZPOYQXNVJOJCYFMKKCRFUPAYSRPVM | QBRGAPOIRYZOESQPKWDVSFQHDNSNXNQEATPCKLVSEFZTKLCQGIKNZYCVAXFHPXBXUOXTVPZFZKHQAGGEJZWNUUGLVENKAHGTHQRITTBOSMVURGLUTTZPOYQXNVJOJCYFMKKCRFUPAYSRPVM | FOURSCORE AND SEVEN YEARS AGO OUR FATHERS BROUGHT FORTH ON THIS CONTINENT A NEW NATION CONCEIVED IN LIBERTY AND DEDICATED TO THE PROPOSITION THAT ALL MEN ARE CREATED EQUAL | geheimschreiber | geheimschreiber | machine | {
"type": "seed",
"value": "KAISER"
} | expert | en | 143 | 143 | cipher_museum | 2.0 | public | null | null |
cda-0012380 | 17.3.2 8.3.9 6.5.1 13.6.7 18.5.8 14.3.8 4.2.8 4.6.4 16.2.1 17.1.9 6.1.1 17.1.1 14.2.6 17.1.7 16.5.2 19.4.4 11.3.4 5.4.5 16.6.7 18.3.5 15.2.9 11.4.4 20.5.7 3.1.10 19.1.8 5.3.7 12.6.4 19.1.10 3.3.6 16.1.4 16.3.4 10.1.5 1.1.6 19.5.5 16.6.1 6.1.7 10.4.4 18.3.1 6.6.3 5.3.9 2.6.6 14.5.10 1.5.6 11.3.1 20.1.1 3.6.9 7.1.10 10.6... | 17.3.2 8.3.9 6.5.1 13.6.7 18.5.8 14.3.8 4.2.8 4.6.4 16.2.1 17.1.9 6.1.1 17.1.1 14.2.6 17.1.7 16.5.2 19.4.4 11.3.4 5.4.5 16.6.7 18.3.5 15.2.9 11.4.4 20.5.7 3.1.10 19.1.8 5.3.7 12.6.4 19.1.10 3.3.6 16.1.4 16.3.4 10.1.5 1.1.6 19.5.5 16.6.1 6.1.7 10.4.4 18.3.1 6.6.3 5.3.9 2.6.6 14.5.10 1.5.6 11.3.1 20.1.1 3.6.9 7.1.10 10.6... | PATTERN WORDS HELP BREAK MONOALPHABETIC SUBSTITUTION ENTROPY MEASURES UNCERTAINTY IN A DISTRIBUTION PUBLIC INFRASTRUCTURE DESERVES CAREFUL DESIGN | arnold_andre | arnold_andre | null | {} | hard | en | 129 | 129 | synthetic_educational | null | null | [
"book_cipher_attack",
"triple_index_search"
] | Arnold-André book cipher: coordinates (page.section.word) referencing a shared text. |
solitaire-v3-0026 | LLKSJMOWXKIUBROMGF | LLKSJMOWXKIUBROMGF | TREASURE BURIED HERE | solitaire | solitaire | stream | {
"type": "none",
"value": null
} | expert | en | 18 | 18 | cipher_museum | 2.0 | public | null | null |
diana-119 | JBLHNYODTHNJKUKMWYCXHVPDLPPUCNJUWAAZJIWDWYUQPVEYJEYTZGUDLHROZEPOXRLUPEAJJBLQLDKIKDLTORWTNXUVIDRPYAWZMRKOOYAPJUKZRBIAYJIKUGIFEEOVCTEPAUVULQYVLBTNAPLE | JBLHNYODTHNJKUKMWYCXHVPDLPPUCNJUWAAZJIWDWYUQPVEYJEYTZGUDLHROZEPOXRLUPEAJJBLQLDKIKDLTORWTNXUVIDRPYAWZMRKOOYAPJUKZRBIAYJIKUGIFEEOVCTEPAUVULQYVLBTNAPLE | 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 | diana | diana | polyalphabetic | {
"type": "keyword",
"value": "CIPHER"
} | intermediate | en | 148 | 148 | cipher_museum | 0.2 | public | null | null |
rail-fence-v2-0464 | TSTEPHDRSOLNIHENEEDYGCEKIPCEETERAFENTKHRKSTAEEEOEEISTURHFNYSEEQMTAEKTDEIEVGISNI | TSTEPHDRSOLNIHENEEDYGCEKIPCEETERAFENTKHRKSTAEEEOEEISTURHFNYSEEQMTAEKTDEIEVGISNI | THE KASISKI TEST FINDS REPEATED SEQUENCES TO DETERMINE THE KEY LENGTH OF A VIGENERE CIPHER KEY | rail_fence | rail_fence | transposition | {
"type": "integer",
"value": 10
} | intermediate | en | 79 | 79 | cipher_museum | 2.0 | public | null | null |
monoalphabetic-v2-0137 | QFNAEQ FRMUCNET | QFNAEQ FRMUCNET | TARGET ACQUIRED | monoalphabetic | monoalphabetic | substitution | {
"type": "keyword",
"value": "FORTRESS"
} | beginner | en | 14 | 15 | cipher_museum | 2.0 | public | null | null |
vigenere-v2-1380 | AVRTLURNAVUHNZGYCOZVTCSQFTAHBZJOGWFUWFHYHHBTILDECUBQVBXHHBBVWCVBKLWGVVYSKOTAZLCIHDCFFEWZOKLZLODLGFOXLGRZVJHRRRAOACKOSEDFPBGTILEHSEAZLHYLARGJHURGYHJRAVHBVBXHBQFVMSEHFWVLGZJOYQFUQRDKZ | AVRTLURNAVUHNZGYCOZVTCSQFTAHBZJOGWFUWFHYHHBTILDECUBQVBXHHBBVWCVBKLWGVVYSKOTAZLCIHDCFFEWZOKLZLODLGFOXLGRZVJHRRRAOACKOSEDFPBGTILEHSEAZLHYLARGJHURGYHJRAVHBVBXHBQFVMSEHFWVLGZJOYQFUQRDKZ | THE FUNDAMENTAL PROBLEM OF COMMUNICATION IS THAT OF REPRODUCING AT ONE POINT EITHER EXACTLY OR APPROXIMATELY A MESSAGE SELECTED AT ANOTHER POINT FREQUENTLY THE MESSAGES HAVE MEANING AND REFER TO PHYSICAL CONCEPTS | vigenere | vigenere | polyalphabetic | {
"type": "keyword",
"value": "HONOR"
} | intermediate | en | 181 | 181 | cipher_museum | 2.0 | public | null | null |
cda-0019119 | GIECT XYCBM ZQNWU TKJNT XBZXO ZDTKQ LUVDT ZCYQW XLDID AUIXS KDEYA LXJFS ZGKKK OMOOJ YNKMB VFRYV OAAPW YZZQW PSINU UXPBH AANTY BPUVY UEQEX UVJWZ PTMVZ W | GIECT XYCBM ZQNWU TKJNT XBZXO ZDTKQ LUVDT ZCYQW XLDID AUIXS KDEYA LXJFS ZGKKK OMOOJ YNKMB VFRYV OAAPW YZZQW PSINU UXPBH AANTY BPUVY UEQEX UVJWZ PTMVZ W | FRIEDMAN ESTIMATED KEY LENGTH FROM STATISTICS BRUTE FORCE WORKS ONLY WHEN THE KEY SPACE IS SMALL THE DETECTIVE STUDIES PATTERNS BEFORE MAKING CLAIMS | one_time_pad | one_time_pad | null | {} | hard | en | 126 | 126 | synthetic_educational | null | null | [
"information_theoretic_proof",
"key_reuse_attack"
] | One-time pad: theoretically unbreakable if key is truly random and never reused. |
tap-code-v2-0012 | ... .. .. .... .... ... .... ... .. .... ... .... ... ... . . . ... . ... ... .... ... .. ... ..... ... . .. .... .... ... .. ... . ..... . .... | ... .. .. .... .... ... .... ... .. .... ... .... ... ... . . . ... . ... ... .... ... .. ... ..... ... . .. .... .... ... .. ... . ..... . .... | MISSION ACCOMPLISHED | tap_code | tap_code | substitution | {
"type": "none",
"value": null
} | beginner | en | 107 | 180 | cipher_museum | 2.0 | public | null | null |
confederate-vigenere-v3-0406 | OASAIRECLFRTBVIOQRGOSERIEYETXQBQASOPKMFHGPIGPGYHUIOEPYVLWGMOTSPJBUUXKFESWISBTHEEZSEHRVKREZSUCYMOHTESGRGSENDEAMIGIJEHRGOSERIEYEDTMVRCIEDXHIAHWTTZFHBFYYHACAGQVTHED | OASAIRECLFRTBVIOQRGOSERIEYETXQBQASOPKMFHGPIGPGYHUIOEPYVLWGMOTSPJBUUXKFESWISBTHEEZSEHRVKREZSUCYMOHTESGRGSENDEAMIGIJEHRGOSERIEYEDTMVRCIEDXHIAHWTTZFHBFYYHACAGQVTHED | WHENEVER ANY FORM OF GOVERNMENT BECOMES DESTRUCTIVE OF THESE ENDS IT IS THE RIGHT OF THE PEOPLE TO ALTER OR TO ABOLISH IT AND TO INSTITUTE NEW GOVERNMENT LAYING ITS FOUNDATION ON SUCH PRINCIPLES | confederate_vigenere | confederate_vigenere | polyalphabetic | {
"type": "keyword",
"value": "STONEWALL"
} | intermediate | en | 161 | 161 | cipher_museum | 2.0 | public | null | null |
cda-0012778 | 802 999 854 808 872 857 802 833 812 999 824 855 999 800 999 853 842 811 999 860 856 812 811 999 804 872 999 855 845 802 852 859 801 839 855 999 857 842 999 813 839 807 853 874 846 859 999 836 813 854 855 801 820 813 856 999 814 865 814 851 874 999 856 874 854 859 814 838 999 839 812 814 810 855 999 801 840 999 821 842 ... | 802 999 854 808 872 857 802 833 812 999 824 855 999 800 999 853 842 811 999 860 856 812 811 999 804 872 999 855 845 802 852 859 801 839 855 999 857 842 999 813 839 807 853 874 846 859 999 836 813 854 855 801 820 813 856 999 814 865 814 851 874 999 856 874 854 859 814 838 999 839 812 814 810 855 999 801 840 999 821 842 ... | A SCYTALE IS A ROD USED BY SPARTANS TO ENCRYPT MESSAGES EVERY SYSTEM NEEDS AN HONEST THREAT MODEL | culper_ring | culper_ring | null | {} | hard | en | 80 | 80 | synthetic_educational | null | null | [
"codebook_frequency",
"number_range_analysis"
] | Culper Ring code: Washington's three-digit codebook numbers (800–999 range). |
sigaba-v3-0041 | GXFCVOMURYRVACPXSCSLL | GXFCVOMURYRVACPXSCSLL | THE TELEGRAPH TRANSMITS | sigaba | sigaba | machine | {
"type": "seed",
"value": "ECMMARK"
} | expert | en | 21 | 21 | cipher_museum | 2.0 | public | null | null |
cda-0017219 | takes holds early array under three opens kings extra yield claim input posts hours enter right extra xerox track enter night draft shore three hours | takes holds early array under three opens kings extra yield claim input posts hours enter right extra xerox track enter night draft shore three hours | THE AUTOKEY CIPHER EXTENDS THE KEY WITH THE PLAINTEXT ITSELF CAESAR SHIFTED THE ALPHABET BY THREE POSITIONS | 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. |
fractionated-morse-v2-0452 | DUHBLIIKSXAINFUBAWVLOBLFSXEKVTVVAIAJWNIPFTVIHVEADWNIBABIFBSIMDAGTNBSEMRAMDAGSBTAVWBSEHBLRVX | DUHBLIIKSXAINFUBAWVLOBLFSXEKVTVVAIAJWNIPFTVIHVEADWNIBABIFBSIMDAGTNBSEMRAMDAGSBTAVWBSEHBLRVX | RECONNOITER THE ENEMY POSITION AND REPORT BACK BEFORE NIGHTFALL WITH A FULL STRENGTH COUNT | fractionated_morse | fractionated_morse | fractionation | {
"type": "keyword",
"value": "FREEDOM"
} | advanced | en | 91 | 91 | cipher_museum | 2.0 | public | null | null |
vic-v3-0029 | 91080898076149190489806185838682 | 91080898076149190489806185838682 | THE REDCOATS ARE COMING | vic | vic | substitution | {
"type": "keyword",
"value": "HOLLOW"
} | advanced | en | 32 | 32 | cipher_museum | 2.0 | public | null | null |
fialka-v2-0010 | OCVHUHBNNSVUIGNOEPVAP | OCVHUHBNNSVUIGNOEPVAP | BRIDGE DESTROYED AT DAWN | fialka | fialka | machine | {
"type": "seed",
"value": "MOSCOW"
} | expert | en | 21 | 21 | cipher_museum | 2.0 | public | null | null |
kl7-v2-0211 | HZRSAMYSDGHIQHGDFVELMNONGDMCHFIYHAOYNOHMBMYARDQZKPOTBFRUWKTPTTYHDANPYMZZQJLWNRBSL | HZRSAMYSDGHIQHGDFVELMNONGDMCHFIYHAOYNOHMBMYARDQZKPOTBFRUWKTPTTYHDANPYMZZQJLWNRBSL | FREQUENCY ANALYSIS EXPLOITS THE FACT THAT CERTAIN LETTERS APPEAR FAR MORE OFTEN IN ENGLISH TEXT | kl7 | kl7 | machine | {
"type": "seed",
"value": "LIBERTY"
} | expert | en | 81 | 81 | cipher_museum | 2.0 | public | null | null |
cda-0004343 | GURI VTRA RERP VCUR EHFR FNER CRNG VATX RLJB EQSE VRQZ NARF GVZN GRQX RLYR ATGU SEBZ FGNG VFGV PFNG ENAF CNER AGGB BYFU BHYQ FUBJ VGFE RNFB AVAT NZBQ RYPN APYN FFVS LCNG GREA FOHG VGPN ANYF BORJ EBAT | GURI VTRA RERP VCUR EHFR FNER CRNG VATX RLJB EQSE VRQZ NARF GVZN GRQX RLYR ATGU SEBZ FGNG VFGV PFNG ENAF CNER AGGB BYFU BHYQ FUBJ VGFE RNFB AVAT NZBQ RYPN APYN FFVS LCNG GREA FOHG VGPN ANYF BORJ EBAT | THE VIGENERE CIPHER USES A REPEATING KEYWORD FRIEDMAN ESTIMATED KEY LENGTH FROM STATISTICS A TRANSPARENT TOOL SHOULD SHOW ITS REASONING A MODEL CAN CLASSIFY PATTERNS BUT IT CAN ALSO BE WRONG | rot13 | rot13 | null | {
"shift": 13
} | hard | en | 160 | 160 | synthetic_educational | null | null | [
"brute_force_26",
"self_inverse_check"
] | ROT-13 is Caesar with shift 13 — it is its own inverse. |
cda-0004265 | SKXSLQRKFCQL IWJDAHS SYV AYIX NGLFGN FW E VCZTGNUXL NGLFGN RQSYX NUKBYJTU WKFVKF SXKQTV SXKO ENZ NUKMKXWLE MFGPG HQEJTU RNYXMJWMQRWKX EJVTQGM WWTEYRYT ALINAVLQWR FOWWG CNKMGCCYZ CQVXUTM FGEWD IRM SKHAHX MUIKHCLA YEFRAHS | SKXSLQRKFCQL IWJDAHS SYV AYIX NGLFGN FW E VCZTGNUXL NGLFGN RQSYX NUKBYJTU WKFVKF SXKQTV SXKO ENZ NUKMKXWLE MFGPG HQEJTU RNYXMJWMQRWKX EJVTQGM WWTEYRYT ALINAVLQWR FOWWG CNKMGCCYZ CQVXUTM FGEWD IRM SKHAHX MUIKHCLA YEFRAHS | SUBSTITUTION CIPHERS MAP EACH LETTER TO A DIFFERENT LETTER HUMAN READABLE OUTPUT SHOULD SHOW ALL REASONING STEPS DOUBLE TRANSPOSITION APPLIES COLUMNAR ENCRYPTION TWICE CLASSICAL CIPHERS TEACH WHY MODERN SECURITY MATTERS | beaufort | beaufort | null | {
"key": "KEY"
} | hard | en | 190 | 190 | synthetic_educational | null | null | [
"kasiski_examination",
"friedman_test",
"index_of_coincidence"
] | Beaufort: E(x)=k-x mod 26 — reciprocal cipher (decryption identical to encryption). |
vernam-v2-0080 | TIGKIFBLVBNPOYOGUKZXAGKOWNFHQGESJAPNPTDZOBUELLBJSBRGFPTWLMOZPJXOUJCGAVSVBIEDFS | TIGKIFBLVBNPOYOGUKZXAGKOWNFHQGESJAPNPTDZOBUELLBJSBRGFPTWLMOZPJXOUJCGAVSVBIEDFS | THE HEAVENS DECLARE THE GLORY OF GOD AND THE FIRMAMENT SHOWETH FORTH HIS HANDIWORK EACH NIGHT | vernam | vernam | stream | {
"type": "pad",
"value": "ABCDEFGH (repeating)"
} | expert | en | 78 | 78 | cipher_museum | 2.0 | public | null | null |
cda-0014995 | DOUBX ETRAN SPOSI TIONA PPLIE SCOLU MNARE NCRYP TIONT WICEA | DOUBX ETRAN SPOSI TIONA PPLIE SCOLU MNARE NCRYP TIONT WICEA | DOUBLE TRANSPOSITION APPLIES COLUMNAR ENCRYPTION TWICE | commercial_code | commercial_code | null | {} | medium | en | 50 | 50 | synthetic_educational | null | null | [
"codebook_frequency",
"five_letter_group_analysis"
] | Commercial code: five-letter groups from a codebook, often ending in X or Z. |
porta-v2-0104 | NRUVBLTEMWCJVBGXXISFMZPKAUYNLKXYSNVNHPYMTGIEMNDWVPAMPKXNGVCNKHPMTJOZTWSRTGYAHRYGUUERIA | NRUVBLTEMWCJVBGXXISFMZPKAUYNLKXYSNVNHPYMTGIEMNDWVPAMPKXNGVCNKHPMTJOZTWSRTGYAHRYGUUERIA | HEADQUARTERS CONFIRMS THAT THE INTELLIGENCE REPORT IS ACCURATE AND REQUIRES IMMEDIATE SWIFT ACTION | porta | porta | polyalphabetic | {
"type": "keyword",
"value": "NAPLES"
} | intermediate | en | 86 | 86 | cipher_museum | 2.0 | public | null | null |
confederate-vigenere-v2-0212 | KPGRMGVVBQVLEHSLELUYQDRDKMFZQEHHEKGZFCQHKMTTUBRWYMMLKZRQXBJVROILXMPLDSPLGPGYWSL | KPGRMGVVBQVLEHSLELUYQDRDKMFZQEHHEKGZFCQHKMTTUBRWYMMLKZRQXBJVROILXMPLDSPLGPGYWSL | THE KASISKI TEST FINDS REPEATED SEQUENCES TO DETERMINE THE KEY LENGTH OF A VIGENERE CIPHER KEY | confederate_vigenere | confederate_vigenere | polyalphabetic | {
"type": "keyword",
"value": "RICHMOND"
} | intermediate | en | 79 | 79 | cipher_museum | 2.0 | public | null | null |
trifid-v2-0402 | UQRZYKHQQNQREMVS | UQRZYKHQQNQREMVS | THE WALLS HAVE EARS | trifid | trifid | fractionation | {
"type": "keyword",
"value": "FREEDOM"
} | advanced | en | 16 | 16 | cipher_museum | 2.0 | public | null | null |
venona-pad-reuse-v2-0369 | A7VMDCDBAWQDNIGCDEQDINCDASNIFCDJN7HNUAJN7MIXAPRDCU6VMOMEKRPMQGIX4KVMA2BAWJN77CZJCRB5BDAJQDCUCDMOI6W7GKPKBLADALILW4KVAKDWWJKSOB57XDH7OUVEXX7IXWEPIPIFQPAQA6B6EVD5IRDBVNC7CVPKWKCAXKH | A7VMDCDBAWQDNIGCDEQDINCDASNIFCDJN7HNUAJN7MIXAPRDCU6VMOMEKRPMQGIX4KVMA2BAWJN77CZJCRB5BDAJQDCUCDMOI6W7GKPKBLADALILW4KVAKDWWJKSOB57XDH7OUVEXX7IXWEPIPIFQPAQA6B6EVD5IRDBVNC7CVPKWKCAXKH | 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 | venona_pad_reuse | venona_pad_reuse | stream | {
"type": "keyword",
"value": "FREEDOM"
} | expert | en | 179 | 179 | cipher_museum | 2.0 | public | null | null |
vic-v3-0259 | 87394588879179458437898903827007878118759215381584391786382884803584758488081915843890787359118758431489758491 | 87394588879179458437898903827007878118759215381584391786382884803584758488081915843890787359118758431489758491 | NEWTON SAW THE APPLE FALL AND INTUITED THE SAME FORCE THAT HOLDS THE PLANETS IN THEIR PATHS | vic | vic | substitution | {
"type": "keyword",
"value": "LIBERTY"
} | advanced | en | 110 | 110 | cipher_museum | 2.0 | public | null | null |
lorenz-v3-0201 | THEORACLEHASSPOKEN | THEORACLEHASSPOKEN | THE ORACLE HAS SPOKEN | lorenz | lorenz | machine | {
"type": "seed",
"value": "COLOSSUS"
} | expert | en | 18 | 18 | cipher_museum | 2.0 | public | null | null |
cda-0007110 | GENAFCBFVGVBA PVCUREF ERNEENATR YRGGREF JVGUBHG FHOFGVGHGVBA CHOYVP VASENFGEHPGHER QRFREIRF PNERSHY QRFVTA VAQRK BS PBVAPVQRAPR ZRNFHERF YRGGRE SERDHRAPL QVFGEVOHGVBA GUR VAQRK BS PBVAPVQRAPR VF N HFRSHY PYHR | GENAFCBFVGVBA PVCUREF ERNEENATR YRGGREF JVGUBHG FHOFGVGHGVBA CHOYVP VASENFGEHPGHER QRFREIRF PNERSHY QRFVTA VAQRK BS PBVAPVQRAPR ZRNFHERF YRGGRE SERDHRAPL QVFGEVOHGVBA GUR VAQRK BS PBVAPVQRAPR VF N HFRSHY PYHR | TRANSPOSITION CIPHERS REARRANGE LETTERS WITHOUT SUBSTITUTION PUBLIC INFRASTRUCTURE DESERVES CAREFUL DESIGN INDEX OF COINCIDENCE MEASURES LETTER FREQUENCY DISTRIBUTION THE INDEX OF COINCIDENCE IS A USEFUL CLUE | rot13 | rot13 | null | {
"shift": 13
} | hard | en | 183 | 183 | synthetic_educational | null | null | [] | |
enigma-v2-1192 | JQWDOQBCQWSGMJTCJPPYPEKIBDMDFRDSQGGICIKEILMATOIORDTFTRRQMSLCHSMWGWTP | JQWDOQBCQWSGMJTCJPPYPEKIBDMDFRDSQGGICIKEILMATOIORDTFTRRQMSLCHSMWGWTP | NEVER IN THE FIELD OF HUMAN CONFLICT WAS SO MUCH OWED BY SO MANY TO SO FEW BRAVE SOULS | enigma | enigma | machine | {
"type": "rotor_start",
"value": "ZZA"
} | expert | en | 68 | 68 | cipher_museum | 2.0 | public | null | null |
straddling-checkerboard-v3-0088 | 22823238120322251282829203837313412270722128892717696767045246207025768338314113017313476087592520324832417316764258324 | 22823238120322251282829203837313412270722128892717696767045246207025768338314113017313476087592520324832417316764258324 | DIFFIE AND HELLMAN INVENTED PUBLIC KEY CRYPTOGRAPHY IN NINETEEN SEVENTY SIX CHANGING EVERYTHING | straddling_checkerboard | straddling_checkerboard | substitution | {
"type": "top_row",
"value": "SENTORISCA"
} | advanced | en | 119 | 119 | cipher_museum | 2.0 | public | null | null |
hill-092 | ZCXSXMSDLXHSYHKQHDZVWOIUHQIXKMMQESLDSMICHNESDN | ZCXSXMSDLXHSYHKQHDZVWOIUHQIXKMMQESLDSMICHNESDN | NEVER INTERRUPT YOUR ENEMY WHEN HE IS MAKING A MISTAKE | hill | hill | polygraphic | {
"a": 3,
"b": 3,
"c": 2,
"d": 7
} | advanced | en | 46 | 46 | cipher_museum | 0.2 | public | null | null |
diana-v2-0743 | DQFAXYSFHGTKANLFOTGYPFUQPHILQNOCEUMWGDPIAAQNOXILWRUQAOCTYWRPCIRQNOGEFLDUHPPVEQCWPENMEDEHPVAWGBABGWYJRCAPYQGEZRYESCZMEATJCLFDLARGYGFURDUBHQOKSTBPPVNFHSCECTSQSQKURQNOOAYTG | DQFAXYSFHGTKANLFOTGYPFUQPHILQNOCEUMWGDPIAAQNOXILWRUQAOCTYWRPCIRQNOGEFLDUHPPVEQCWPENMEDEHPVAWGBABGWYJRCAPYQGEZRYESCZMEATJCLFDLARGYGFURDUBHQOKSTBPPVNFHSCECTSQSQKURQNOOAYTG | GENTLEMEN MAY CRY PEACE PEACE BUT THERE IS NO PEACE THE WAR IS ACTUALLY BEGUN THE NEXT GALE THAT SWEEPS FROM THE NORTH WILL BRING TO OUR EARS THE CLASH OF RESOUNDING ARMS OUR BRETHREN ARE ALREADY IN THE FIELD | diana | diana | polyalphabetic | {
"type": "keyword",
"value": "JUSTICE"
} | intermediate | en | 169 | 169 | cipher_museum | 2.0 | public | null | null |
noisy-columnar_transposition-ocr_heavy-026 | SATOOESNNITOTYTSENNSEEUSEETNKNAIIOKRTQEHHXIEEIXALFPOEIGRTDEGKKMIORAECTPEFHLH | SATOOESNNITOTYTSENNSEEUSEETNKNAIIOKRTQEHHXIEEIXALFPOEIGRTDEGKKMIORAECTPEFHLH | KASISKI EXAMINATION LOOKS FOR REPEATED SEQUENCES IN THE CIPHERTEXT TO FIND THE KEY LENGTH | columnar_transposition | columnar_transposition | transposition | {
"type": "keyword",
"value": "ZEBRA"
} | intermediate | en | 76 | 76 | cipher_museum | 0.2 | public | null | null |
alberti-disk-027 | LFWLPCQGOOVM | LFWLPCQGOOVM | THE TRAP IS SET | alberti_disk | alberti_disk | disk | {
"type": "integer",
"value": 3
} | expert | en | 12 | 12 | cipher_museum | 0.2 | public | null | null |
enigma-v2-1030 | AGYDVKXVZWHTITNP | AGYDVKXVZWHTITNP | DIVIDE AND CONQUER | enigma | enigma | machine | {
"type": "rotor_start",
"value": "AAB"
} | expert | en | 16 | 16 | cipher_museum | 2.0 | public | null | null |
nihilist-v3-0102 | 66 38 29 38 58 63 77 83 27 38 35 67 57 57 | 66 38 29 38 58 63 77 83 27 38 35 67 57 57 | MARCH TO VICTORY | nihilist | nihilist | fractionation | {
"polybius": "LIBERTY",
"keyword": "FREEDOM"
} | advanced | en | 28 | 41 | cipher_museum | 2.0 | public | null | null |
cda-0012579 | 857 823 813 999 842 841 813 999 859 824 836 814 999 846 801 811 999 824 855 999 857 823 812 843 851 812 857 824 806 800 834 834 873 999 860 841 803 851 813 800 832 800 804 834 813 999 824 815 999 860 854 814 809 999 807 842 853 853 812 806 859 835 872 999 806 842 833 862 836 839 800 851 999 859 851 800 841 854 846 844 ... | 857 823 813 999 842 841 813 999 859 824 836 814 999 846 801 811 999 824 855 999 857 823 812 843 851 812 857 824 806 800 834 834 873 999 860 841 803 851 813 800 832 800 804 834 813 999 824 815 999 860 854 814 809 999 807 842 853 853 812 806 859 835 872 999 806 842 833 862 836 839 800 851 999 859 851 800 841 854 846 844 ... | THE ONE TIME PAD IS THEORETICALLY UNBREAKABLE IF USED CORRECTLY COLUMNAR TRANSPOSITION READS COLUMNS IN KEY ORDER THE FRIEDMAN TEST USES THE INDEX OF COINCIDENCE TO ESTIMATE KEY LENGTH | culper_ring | culper_ring | null | {} | hard | en | 156 | 156 | synthetic_educational | null | null | [
"codebook_frequency",
"number_range_analysis"
] | Culper Ring code: Washington's three-digit codebook numbers (800–999 range). |
stager-route-v3-0158 | TNYUIEINNSMFGHENOPFTGAOOHREONCTORDTAOGFHELYSEEONLLOOVTSTHARIDTXXHMLIRI | TNYUIEINNSMFGHENOPFTGAOOHREONCTORDTAOGFHELYSEEONLLOOVTSTHARIDTXXHMLIRI | THE ONLY THING NECESSARY FOR THE TRIUMPH OF EVIL IS FOR GOOD MEN TO DO NOTHING AT ALL | stager_route | stager_route | transposition | {
"type": "integer",
"value": 10
} | expert | en | 70 | 70 | cipher_museum | 2.0 | public | null | null |
confederate-vigenere-v3-0528 | OPGCWOUKKYMEBWFM | OPGCWOUKKYMEBWFM | THE SENATE DECREES | confederate_vigenere | confederate_vigenere | polyalphabetic | {
"type": "keyword",
"value": "VICKSBURG"
} | intermediate | en | 16 | 16 | cipher_museum | 2.0 | public | null | null |
slidex-026 | HQMUDQSQDQEEJHEQ | HQMUDQSQDQEEJHEQ | FORWARD MARCH NOW | slidex | slidex | transposition | {
"type": "keyword",
"value": "SECRET"
} | advanced | en | 16 | 16 | cipher_museum | 0.2 | public | null | null |
hill-v2-0030 | CMRLYGOKHXVMOXQKRPXH | CMRLYGOKHXVMOXQKRPXH | WISDOM GUARDS THE GATE | hill | hill | polygraphic | {
"a": 3,
"b": 5,
"c": 2,
"d": 9
} | advanced | en | 20 | 20 | cipher_museum | 2.0 | public | null | null |
cda-0004478 | TIGI VNKK UJXE QFHJ IVKM BZEK BDXP HFSN TJQM OYOR HDUJ LBGV PBID YMGQ KYN | TIGI VNKK UJXE QFHJ IVKM BZEK BDXP HFSN TJQM OYOR HDUJ LBGV PBID YMGQ KYN | THE FRIEDMAN TEST USES THE INDEX OF COINCIDENCE TO ESTIMATE KEY LENGTH | trithemius | trithemius | null | {} | medium | en | 59 | 59 | synthetic_educational | null | null | [
"progressive_shift_detection",
"frequency_analysis"
] | Trithemius: progressive Caesar (shift = letter position); no key needed. |
great-cipher-v2-0372 | 101 140 131 164 159 158 146 136 137 149 116 169 121 167 121 114 171 117 114 114 164 119 154 123 100 150 154 104 101 100 171 103 149 116 118 164 133 160 178 100 120 140 149 156 160 115 147 122 103 138 110 158 133 175 141 111 119 132 158 149 149 116 108 110 125 112 182 115 141 111 158 146 142 142 119 158 178 174 140 167 ... | 101 140 131 164 159 158 146 136 137 149 116 169 121 167 121 114 171 117 114 114 164 119 154 123 100 150 154 104 101 100 171 103 149 116 118 164 133 160 178 100 120 140 149 156 160 115 147 122 103 138 110 158 133 175 141 111 119 132 158 149 149 116 108 110 125 112 182 115 141 111 158 146 142 142 119 158 178 174 140 167 ... | THE FUNDAMENTAL PROBLEM OF COMMUNICATION IS THAT OF REPRODUCING AT ONE POINT EITHER EXACTLY OR APPROXIMATELY A MESSAGE SELECTED AT ANOTHER POINT FREQUENTLY THE MESSAGES HAVE MEANING AND REFER TO PHYSICAL CONCEPTS | great_cipher | great_cipher | nomenclator | {
"type": "seed",
"value": "FRANCE"
} | expert | en | 405 | 539 | cipher_museum | 2.0 | public | null | null |
jn25-v3-0126 | 09992 09993 09999 09992 09901 09993 09902 09908 09993 09900 09900 09902 09903 09908 09999 09900 09993 09907 | 09992 09993 09999 09992 09901 09993 09902 09908 09993 09900 09900 09902 09903 09908 09999 09900 09993 09907 | DEAD MEN TELL NO TALES | jn25 | jn25 | codebook | {
"type": "additive",
"value": "99999"
} | expert | en | 90 | 107 | cipher_museum | 2.0 | public | null | null |
cda-0021164 | QOKEE DYSHE DYDAL SHEDY OKALO TAINC HEDYY PCHOL CTAII NCHOL DAIIN QOKEE DYCHO LRAII NQOKE DYOTA INSHE OLSHE DYOTO LOTED YSHED YSHEE DYQOK EDY | QOKEE DYSHE DYDAL SHEDY OKALO TAINC HEDYY PCHOL CTAII NCHOL DAIIN QOKEE DYCHO LRAII NQOKE DYOTA INSHE OLSHE DYOTO LOTED YSHED YSHEE DYQOK EDY | FAIL CLOSED IS A POSTURE NOT A SLOGAN GOOD EDUCATIONAL TOOLS EXPLAIN THEIR LIMITS | voynich_render | voynich_render | null | {} | hard | en | 118 | 118 | synthetic_educational | null | null | [
"statistical_analysis",
"unsolved"
] | Voynich manuscript: undeciphered 15th-century script; pseudo-syllabic output. |
fialka-v2-0142 | XNXXBGSUKMHUJQ | XNXXBGSUKMHUJQ | COVER MY RETREAT | fialka | fialka | machine | {
"type": "seed",
"value": "KREMLIN"
} | expert | en | 14 | 14 | cipher_museum | 2.0 | public | null | null |
cda-0021543 | takes heavy exact vital intel given early naval enter raids enemy cover inner parts heavy enemy raids units swift extra swift alert roads early parts | takes heavy exact vital intel given early naval enter raids enemy cover inner parts heavy enemy raids units swift extra swift alert roads early parts | THE VIGENERE CIPHER USES A REPEATING KEYWORD OPEN SOURCE TOOLS ALLOW INDEPENDENT VERIFICATION FAIL CLOSED IS A POSTURE NOT A SLOGAN SUBSTITUTION CIPHERS MAP EACH LETTER TO A DIFFERENT LETTER | 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. |
sigaba-207 | YFBCLGLMMSFW | YFBCLGLMMSFW | THE TRAP IS SET | sigaba | sigaba | machine | {
"type": "seed",
"value": "MUSEUM"
} | expert | en | 12 | 12 | cipher_museum | 0.2 | public | null | null |
copiale-139 | T3 K6 P1 M5 R2 Y7 C1 A3 B1 O7 Y5 U2 B0 R6 C3 T3 | T3 K6 P1 M5 R2 Y7 C1 A3 B1 O7 Y5 U2 B0 R6 C3 T3 | NO PRISONERS TAKEN | copiale | copiale | substitution | {
"type": "keyword",
"value": "SECRET"
} | advanced | en | 32 | 47 | cipher_museum | 0.2 | public | null | null |
navajo-code-001 | [AL-TAH-JE-JAY] / BE-LA-SANA THAN-ZIE / BE BE-LA-SANA GLOE-IH A-CHIN | [AL-TAH-JE-JAY] / BE-LA-SANA THAN-ZIE / BE BE-LA-SANA GLOE-IH A-CHIN | ATTACK AT DAWN | navajo_code | navajo_code | code | {
"type": "none",
"value": null
} | expert | en | 60 | 76 | cipher_museum | 0.2 | public | null | null |
morse-code-v3-0026 | - .-. . .- ... ..- .-. . / -... ..- .-. .. . -.. / .... . .-. . | - .-. . .- ... ..- .-. . / -... ..- .-. .. . -.. / .... . .-. . | TREASURE BURIED HERE | morse_code | morse_code | encoding | {
"type": "none",
"value": null
} | beginner | en | 44 | 63 | cipher_museum | 2.0 | public | null | null |
geez-monastic-083 | XFONUCAUTQOPQ | XFONUCAUTQOPQ | THE KING IS DEAD | geez_monastic | geez_monastic | substitution | {
"type": "keyword",
"value": "CIPHER"
} | advanced | en | 13 | 13 | cipher_museum | 0.2 | public | null | null |
m209-197 | TZZKEMNWAOTBPBT | TZZKEMNWAOTBPBT | MEET AT THE OLD OAK | m209 | m209 | machine | {
"type": "seed",
"value": "MUSEUM"
} | expert | en | 15 | 15 | cipher_museum | 0.2 | public | null | null |
cda-0013920 | - .... . / .-.. .. -... .-. .- .-. -.-- / .--. .-. . ... . .-. ...- . ... / -.- -. --- .-- .-.. . -.. --. . / ..-. --- .-. / - .... . / -.-. --- -- -- ..- -. .. - -.-- / .- - -... .- ... .... / . -. -.-. --- -.. . ... / -... -.-- / .-. . ...- . .-. ... .. -. --. / - .... . / .- .-.. .--. .... .- -... . - / -.. --- ..- ... | - .... . / .-.. .. -... .-. .- .-. -.-- / .--. .-. . ... . .-. ...- . ... / -.- -. --- .-- .-.. . -.. --. . / ..-. --- .-. / - .... . / -.-. --- -- -- ..- -. .. - -.-- / .- - -... .- ... .... / . -. -.-. --- -.. . ... / -... -.-- / .-. . ...- . .-. ... .. -. --. / - .... . / .- .-.. .--. .... .- -... . - / -.. --- ..- ... | THE LIBRARY PRESERVES KNOWLEDGE FOR THE COMMUNITY ATBASH ENCODES BY REVERSING THE ALPHABET DOUBLE TRANSPOSITION APPLIES COLUMNAR ENCRYPTION TWICE THE RAIL FENCE CIPHER WRITES TEXT IN A ZIGZAG PATTERN | morse_code | morse_code | null | {} | hard | en | 171 | 171 | synthetic_educational | null | null | [
"symbol_decode",
"frequency_analysis"
] | Morse code: dots and dashes; word-separated by / symbol. |
lorenz-v3-0212 | DEUSVULT | DEUSVULT | DEUS VULT | lorenz | lorenz | machine | {
"type": "seed",
"value": "COLOSSUS"
} | expert | en | 8 | 8 | cipher_museum | 2.0 | public | null | null |
cda-0015814 | 14 24 21 21 24 15 11 33 14 23 15 31 31 32 11 33 24 33 44 42 34 14 45 13 15 14 35 45 12 31 24 13 25 15 54 13 42 54 35 44 34 22 42 11 35 23 54 24 33 33 24 33 15 44 15 15 33 43 15 51 15 33 44 54 43 24 53 | 14 24 21 21 24 15 11 33 14 23 15 31 31 32 11 33 24 33 44 42 34 14 45 13 15 14 35 45 12 31 24 13 25 15 54 13 42 54 35 44 34 22 42 11 35 23 54 24 33 33 24 33 15 44 15 15 33 43 15 51 15 33 44 54 43 24 53 | DIFFIE AND HELLMAN INTRODUCED PUBLIC KEY CRYPTOGRAPHY IN NINETEEN SEVENTY SIX | polybius | polybius | null | {} | medium | en | 67 | 67 | synthetic_educational | null | null | [
"pair_decode",
"frequency_analysis"
] | Polybius square: 5×5 grid maps letters to two-digit row-column pairs. |
arnold-andre-v3-0001 | 1.1.2 13.1.1 14.3.5 14.4.3 14.1.1 14.1.3 14.3.2 14.1.5 15.1.1 13.1.1 14.2.3 14.1.1 14.4.4 15.1.1 13.1.1 14.4.4 14.4.1 14.3.5 14.3.1 14.1.5 14.3.4 15.1.1 | 1.1.2 13.1.1 14.3.5 14.4.3 14.1.1 14.1.3 14.3.2 14.1.5 15.1.1 13.1.1 14.2.3 14.1.1 14.4.4 15.1.1 13.1.1 14.4.4 14.4.1 14.3.5 14.3.1 14.1.5 14.3.4 15.1.1 | THE ORACLE HAS SPOKEN | arnold_andre | arnold_andre | codebook | {
"type": "none",
"value": null
} | expert | en | 131 | 152 | cipher_museum | 2.0 | public | null | null |
double-transposition-017 | LOKDATHOTEETMEA | LOKDATHOTEETMEA | MEET AT THE OLD OAK | double_transposition | double_transposition | transposition | {
"key1": "FIRST",
"key2": "SECOND"
} | advanced | en | 15 | 15 | cipher_museum | 0.2 | public | null | null |
cda-0017978 | 5 14 20 18 15 16 25 13 5 1 19 21 18 5 19 21 14 3 5 18 20 1 9 14 20 25 9 14 1 4 9 19 20 18 9 2 21 20 9 15 14 | 5 14 20 18 15 16 25 13 5 1 19 21 18 5 19 21 14 3 5 18 20 1 9 14 20 25 9 14 1 4 9 19 20 18 9 2 21 20 9 15 14 | ENTROPY MEASURES UNCERTAINTY IN A DISTRIBUTION | aeneas_tacticus | aeneas_tacticus | null | {} | medium | en | 41 | 41 | synthetic_educational | null | null | [
"sequential_number_decode",
"frequency_analysis"
] | Aeneas Tacticus: Greek sequential-number cipher; A=1…Z=26. |
bazeries-253 | XFYGYYIMJOMTYGP | XFYGYYIMJOMTYGP | ENEMY FORCES NEAR | bazeries | bazeries | transposition | {
"type": "integer",
"value": 31
} | advanced | en | 15 | 15 | cipher_museum | 0.2 | public | null | null |
affine-v3-0941 | ZHVWQ KIB KOVLSBKZ | ZHVWQ KIB KOVLSBKZ | SOUND THE TRUMPETS | affine | affine | substitution | {
"a": 11,
"b": 9
} | beginner | en | 16 | 18 | cipher_museum | 2.0 | public | null | null |
cda-0017075 | 63 23 23 3 3 33 79 93 23 78 27 15 62 58 48 63 58 45 64 32 21 66 67 93 30 59 60 92 40 1 60 25 33 3 93 15 34 22 11 23 27 3 21 17 67 33 82 32 61 72 58 25 49 11 91 17 33 3 33 21 49 63 3 26 35 2 30 76 46 79 93 24 48 99 33 58 23 1 15 64 62 22 87 3 41 63 25 11 66 25 43 22 39 46 91 3 2 99 11 63 26 43 49 68 59 26 99 21 59 63 17... | 63 23 23 3 3 33 79 93 23 78 27 15 62 58 48 63 58 45 64 32 21 66 67 93 30 59 60 92 40 1 60 25 33 3 93 15 34 22 11 23 27 3 21 17 67 33 82 32 61 72 58 25 49 11 91 17 33 3 33 21 49 63 3 26 35 2 30 76 46 79 93 24 48 99 33 58 23 1 15 64 62 22 87 3 41 63 25 11 66 25 43 22 39 46 91 3 2 99 11 63 26 43 49 68 59 26 99 21 59 63 17... | PEER REVIEW AND REPRODUCIBILITY MATTER IN RESEARCH BEAUFORT IS THE RECIPROCAL OF VIGENERE AND DECRYPTS ITSELF TRANSPOSITION CIPHERS REARRANGE LETTERS WITHOUT SUBSTITUTION TODAY | homophonic | homophonic | null | {} | hard | en | 154 | 154 | synthetic_educational | null | null | [
"frequency_analysis",
"multiple_ciphertext_attack"
] | Homophonic substitution: each letter maps to multiple possible numbers. |
cda-0002418 | RBNOIYK MRJVSORV SBXRONJUBNK UB J EUVNOUZSNUIB NCR AJVUVAU RDJMUBJNUIB PUBEV ORYRJNRE NOUWOJMV UB XUYCRONRDN ZOSNR PIOXR GIOAV IBTK GCRB NCR ARK VYJXR UV VMJTT | RBNOIYK MRJVSORV SBXRONJUBNK UB J EUVNOUZSNUIB NCR AJVUVAU RDJMUBJNUIB PUBEV ORYRJNRE NOUWOJMV UB XUYCRONRDN ZOSNR PIOXR GIOAV IBTK GCRB NCR ARK VYJXR UV VMJTT | ENTROPY MEASURES UNCERTAINTY IN A DISTRIBUTION THE KASISKI EXAMINATION FINDS REPEATED TRIGRAMS IN CIPHERTEXT BRUTE FORCE WORKS ONLY WHEN THE KEY SPACE IS SMALL | monoalphabetic | monoalphabetic | null | {
"alphabet": "JZXERPWCULATMBIYQOVNSHGDKF"
} | hard | en | 136 | 136 | synthetic_educational | null | null | [
"frequency_analysis",
"pattern_words",
"hill_climbing_lm"
] | Monoalphabetic substitution with an arbitrary 26-letter permutation. |
geheimschreiber-v3-0156 | ABSYPDOBRERHCBNOWAZVNVJJTKMFEKFKMHWNNFPEKPLRKHKINMRVXXLJYGJHOYRBZVLVHSGMH | ABSYPDOBRERHCBNOWAZVNVJJTKMFEKFKMHWNNFPEKPLRKHKINMRVXXLJYGJHOYRBZVLVHSGMH | DO NOT GO GENTLE INTO THAT GOOD NIGHT OLD AGE SHOULD BURN AND RAVE AT CLOSE OF DAY RAGE RAGE | geheimschreiber | geheimschreiber | machine | {
"type": "seed",
"value": "KAISER"
} | expert | en | 73 | 73 | cipher_museum | 2.0 | public | null | null |
scytale-v2-0533 | PTECBIGVCOYXAINERNSITRXX | PTECBIGVCOYXAINERNSITRXX | PATIENCE BRINGS VICTORY | scytale | scytale | transposition | {
"type": "integer",
"value": 12
} | intermediate | en | 24 | 24 | cipher_museum | 2.0 | public | null | null |
chinese-telegraph-v2-0361 | 5814 4427 5563 4614 4427 5397 4427 4489 5060 5397 4427 5563 4614 4427 5397 4427 5166 5397 4427 5488 4427 4998 5563 4154 5563 4680 5741 4427 5488 5060 4489 5563 4614 4427 5645 4998 4680 5563 4427 4361 5488 5563 4154 5563 4427 5488 5060 4489 4154 4934 4427 5397 4680 4298 4154 4680 4998 4550 4427 4998 4427 5397 4154 4871 ... | 5814 4427 5563 4614 4427 5397 4427 4489 5060 5397 4427 5563 4614 4427 5397 4427 5166 5397 4427 5488 4427 4998 5563 4154 5563 4680 5741 4427 5488 5060 4489 5563 4614 4427 5645 4998 4680 5563 4427 4361 5488 5563 4154 5563 4427 5488 5060 4489 4154 4934 4427 5397 4680 4298 4154 4680 4998 4550 4427 4998 4427 5397 4154 4871 ... | WE THEREFORE THE REPRESENTATIVES OF THE UNITED STATES OF AMERICA IN GENERAL CONGRESS ASSEMBLED APPEALING TO THE SUPREME JUDGE OF THE WORLD FOR THE RECTITUDE OF OUR INTENTIONS DO SOLEMNLY PUBLISH | chinese_telegraph | chinese_telegraph | codebook | {
"type": "additive",
"value": "14142"
} | expert | en | 656 | 819 | cipher_museum | 2.0 | public | null | null |
cda-0012088 | 82 29 66 80 69 65 43 77 82 68 61 59 80 82 61 59 29 52 82 80 66 68 50 29 66 43 50 29 68 11 50 61 66 80 50 20 59 66 50 69 29 52 80 43 65 66 69 25 80 68 65 36 43 80 82 89 68 80 11 61 65 68 66 50 82 29 52 82 68 29 11 52 68 80 82 76 59 57 66 36 50 29 55 50 29 25 55 82 80 52 55 36 69 76 76 61 65 80 50 29 52 50 65 57 82 61 68... | 82 29 66 80 69 65 43 77 82 68 61 59 80 82 61 59 29 52 82 80 66 68 50 29 66 43 50 29 68 11 50 61 66 80 50 20 59 66 50 69 29 52 80 43 65 66 69 25 80 68 65 36 43 80 82 89 68 80 11 61 65 68 66 50 82 29 52 82 68 29 11 52 68 80 82 76 59 57 66 36 50 29 55 50 29 25 55 82 80 52 55 36 69 76 76 61 65 80 50 29 52 50 65 57 82 61 68... | ENTROPY MEASURES UNCERTAINTY IN A DISTRIBUTION CRYPTOGRAPHY REWARDS PATIENCE AND CAREFUL THINKING KERCKHOFFS PRINCIPLE SAYS THE SYSTEM MUST BE SECURE EVEN IF ENEMY KNOWS ALGORITHM CAREFULLY | wallis_cipher | wallis_cipher | null | {} | hard | en | 164 | 164 | synthetic_educational | null | null | [
"number_substitution_decode",
"frequency_analysis"
] | Wallis cipher: each letter mapped to a unique two-digit number from a fixed table. |
venona-pad-reuse-v3-0183 | ZAHJRYKDFSA2YQNMMGV5JZAHM4AQG5PPEXKDFSAAR4E3JK4TVIIME2LKD2PBVY4J3QK432JGNIF6QJISM76K | ZAHJRYKDFSA2YQNMMGV5JZAHM4AQG5PPEXKDFSAAR4E3JK4TVIIME2LKD2PBVY4J3QK432JGNIF6QJISM76K | SIGNALS INTELLIGENCE OR SIGINT INVOLVES INTERCEPTION AND ANALYSIS OF ELECTRONIC COMMUNICATIONS | venona_pad_reuse | venona_pad_reuse | stream | {
"type": "keyword",
"value": "LIBERTY"
} | expert | en | 84 | 84 | cipher_museum | 2.0 | public | null | null |
trifid-v3-0003 | VBVHWDNFE+DFGPZKGZNHLTK | VBVHWDNFE+DFGPZKGZNHLTK | ROME WAS NOT BUILT IN ONE DAY | trifid | trifid | fractionation | {
"type": "keyword",
"value": "PALACE"
} | advanced | en | 23 | 23 | cipher_museum | 2.0 | public | null | null |
kl7-v2-0119 | SZYOBWCPUPYSFITIOXUCHNRAZRRBYILBOHLSGSQWNSFLQZFZINQEVPXHWGKZBQETSVQMXHWFIAUJBZGJJATKZYVONVKOUUBBRTBVFCFSGMLBLHGJXQTUGLPVNOGJSQHQAXOFBVFPTDEARLECFJFIBOOYCSAFGRMOHIDEPOECMVZVHBI | SZYOBWCPUPYSFITIOXUCHNRAZRRBYILBOHLSGSQWNSFLQZFZINQEVPXHWGKZBQETSVQMXHWFIAUJBZGJJATKZYVONVKOUUBBRTBVFCFSGMLBLHGJXQTUGLPVNOGJSQHQAXOFBVFPTDEARLECFJFIBOOYCSAFGRMOHIDEPOECMVZVHBI | THE HISTORY OF CRYPTOLOGY IS A BATTLE OF WITS BETWEEN THOSE WHO MAKE CODES AND THOSE WHO BREAK THEM FOR EVERY SYSTEM DEVISED BY A CUNNING ENCIPHERER A PATIENT CRYPTANALYST HAS FOUND A METHOD TO REVEAL ITS SECRETS | kl7 | kl7 | machine | {
"type": "seed",
"value": "NATO"
} | expert | en | 175 | 175 | cipher_museum | 2.0 | public | null | null |
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