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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
wallis-cipher-v3-0058 | 90 55 61 56 91 90 60 33 22 23 10 91 90 86 42 49 91 90 24 54 56 91 90 31 63 89 76 91 90 82 28 43 55 81 34 10 91 90 24 55 87 53 43 91 90 52 54 72 10 91 90 55 61 42 24 56 91 90 43 25 85 24 91 90 10 23 89 49 43 81 34 21 24 91 90 42 31 91 90 46 54 87 63 43 91 90 59 56 72 89 53 54 91 90 86 42 25 63 91 90 84 33 53 55 61 91 | 90 55 61 56 91 90 60 33 22 23 10 91 90 86 42 49 91 90 24 54 56 91 90 31 63 89 76 91 90 82 28 43 55 81 34 10 91 90 24 55 87 53 43 91 90 52 54 72 10 91 90 55 61 42 24 56 91 90 43 25 85 24 91 90 10 23 89 49 43 81 34 21 24 91 90 42 31 91 90 46 54 87 63 43 91 90 59 56 72 89 53 54 91 90 86 42 25 63 91 90 84 33 53 55 61 91 | THE LIGHT YOU SEE FROM DISTANT STARS LEFT THOSE SUNS THOUSANDS OF YEARS BEFORE YOUR BIRTH | wallis_cipher | wallis_cipher | nomenclator | {
"type": "seed",
"value": "OXFORD"
} | expert | en | 212 | 317 | cipher_museum | 2.0 | public | null | null |
chinese-telegraph-v3-0127 | 7529 8685 7911 7911 8528 7194 7720 7911 7194 7654 7467 7194 7401 | 7529 8685 7911 7911 8528 7194 7720 7911 7194 7654 7467 7194 7401 | FULL SAIL AHEAD | chinese_telegraph | chinese_telegraph | codebook | {
"type": "additive",
"value": "27182"
} | expert | en | 52 | 64 | cipher_museum | 2.0 | public | null | null |
four-square-v3-0399 | QDWAHCEUKERQTQSUOASS | QDWAHCEUKERQTQSUOASS | THE ALCHEMIST SUCCEEDS | four_square | four_square | polygraphic | {
"key1": "WISDOM",
"key2": "COURAGE"
} | advanced | en | 20 | 20 | cipher_museum | 2.0 | public | null | null |
kama-sutra-v3-0317 | XUOEV MJN MAOTCNMX | XUOEV MJN MAOTCNMX | SOUND THE TRUMPETS | kama_sutra | kama_sutra | substitution | {
"type": "keyword",
"value": "WISDOM"
} | intermediate | en | 16 | 18 | cipher_museum | 2.0 | public | null | null |
cardano-autokey-v3-0062 | FALFBTMEPSTGSZBTIVERGKHLVGALWCSMWSBPJZIRTRLNQITFWTILDABGAZAVAVVRXXIRSTFKR | FALFBTMEPSTGSZBTIVERGKHLVGALWCSMWSBPJZIRTRLNQITFWTILDABGAZAVAVVRXXIRSTFKR | THE BATTLE OF BRITAIN RAGED IN THE SKIES ABOVE ENGLAND FOR FOUR MONTHS IN NINETEEN FORTY | cardano_autokey | cardano_autokey | polyalphabetic | {
"type": "keyword",
"value": "MILAN"
} | advanced | en | 73 | 73 | cipher_museum | 2.0 | public | null | null |
one-time-pad-059 | SFBYJULLZIRZRMC | SFBYJULLZIRZRMC | THE COAST IS CLEAR | one_time_pad | one_time_pad | stream | {
"type": "pad",
"value": "ZYXWVUTS (repeating)"
} | expert | en | 15 | 15 | cipher_museum | 0.2 | public | null | null |
cda-0015908 | 6300 02593 1653 1916 04807 6665 5652 6013 5403 6683 0332 5742 1665 1003 2906 5064 02519 01578 5729 6657 06043 01649 05982 6283 7278 4772 3521 01622 7882 7320 4712 5739 01282 5049 04734 03853 07871 00727 02836 06622 6045 6009 05354 06645 00365 5748 01597 6040 5094 4719 3776 7852 00697 2874 6682 5996 1668 4448 0968 4789 ... | 6300 02593 1653 1916 04807 6665 5652 6013 5403 6683 0332 5742 1665 1003 2906 5064 02519 01578 5729 6657 06043 01649 05982 6283 7278 4772 3521 01622 7882 7320 4712 5739 01282 5049 04734 03853 07871 00727 02836 06622 6045 6009 05354 06645 00365 5748 01597 6040 5094 4719 3776 7852 00697 2874 6682 5996 1668 4448 0968 4789 ... | THE FOUR SQUARE CIPHER USES TWO KEYWORD POLYBIUS SQUARES POLYBIUS ENCODED LETTERS AS PAIRS OF NUMBERS FROM ONE TO FIVE | zimmermann | zimmermann | null | {} | hard | en | 99 | 99 | synthetic_educational | null | null | [
"codebook_frequency",
"number_group_analysis"
] | Zimmermann Telegram code: WWI German diplomatic numeric codebook cipher. |
cda-0020909 | KNRMO HCUWF JHEXC FUGYJ ZBYZS XFIHX LCPNB ZVEZU BSRUB OJVLZ EUQFM SPGWP BQRSU IXQMO AIJTC SVKPU QIHNE DHJGY EAHEX UOJKG ZRENV HTADH ZVXMB IDUVL DAQDC XUCYI KUHMU GHOXV AFMND UZZJD JHVBG SBCJM VHBSY KBHTG OSBVA NGRYN BYTEO VIXQU UNICT NJF | KNRMO HCUWF JHEXC FUGYJ ZBYZS XFIHX LCPNB ZVEZU BSRUB OJVLZ EUQFM SPGWP BQRSU IXQMO AIJTC SVKPU QIHNE DHJGY EAHEX UOJKG ZRENV HTADH ZVXMB IDUVL DAQDC XUCYI KUHMU GHOXV AFMND UZZJD JHVBG SBCJM VHBSY KBHTG OSBVA NGRYN BYTEO VIXQU UNICT NJF | TWO SQUARE CIPHER ENCRYPTS DIGRAPHS WITH TWO POLYBIUS ALPHABETS THE DETECTIVE STUDIES PATTERNS BEFORE MAKING CLAIMS INDEX OF COINCIDENCE MEASURES LETTER FREQUENCY DISTRIBUTION A SCYTALE IS A ROD USED BY SPARTANS TO ENCRYPT MESSAGES | one_time_pad | one_time_pad | null | {} | hard | en | 198 | 198 | synthetic_educational | null | null | [
"information_theoretic_proof",
"key_reuse_attack"
] | One-time pad: theoretically unbreakable if key is truly random and never reused. |
fractionated-morse-195 | KRICIBNDLIGCWCDCS | KRICIBNDLIGCWCDCS | OPERATION BEGINS | fractionated_morse | fractionated_morse | fractionation | {
"type": "keyword",
"value": "MUSEUM"
} | advanced | en | 17 | 17 | cipher_museum | 0.2 | public | null | null |
sigaba-v2-0145 | AFWUDLVBDBYOQFJOAJ | AFWUDLVBDBYOQFJOAJ | CONTACT HAS BEEN MADE | sigaba | sigaba | machine | {
"type": "seed",
"value": "ARMY"
} | expert | en | 18 | 18 | cipher_museum | 2.0 | public | null | null |
copiale-v2-0073 | B1 L1 R8 A6 O5 B0 K7 C9 O4 C3 M6 R5 L5 B1 A9 P6 V4 B3 J9 T4 O5 B5 B2 P9 P3 R5 L9 S6 T9 P9 I6 B3 P3 A9 A5 T0 B1 T2 O2 N7 M2 O5 A6 H2 K8 X2 A3 S6 A2 O4 S3 Q7 T2 R5 M8 O4 A6 I3 X0 X7 C8 R1 U6 S1 M6 Y0 U6 P9 M2 Q8 M8 C9 B2 | B1 L1 R8 A6 O5 B0 K7 C9 O4 C3 M6 R5 L5 B1 A9 P6 V4 B3 J9 T4 O5 B5 B2 P9 P3 R5 L9 S6 T9 P9 I6 B3 P3 A9 A5 T0 B1 T2 O2 N7 M2 O5 A6 H2 K8 X2 A3 S6 A2 O4 S3 Q7 T2 R5 M8 O4 A6 I3 X0 X7 C8 R1 U6 S1 M6 Y0 U6 P9 M2 Q8 M8 C9 B2 | THE SECRET OF GETTING AHEAD IS GETTING STARTED ONE STEP AT A TIME GETS YOU VERY FAR INDEED | copiale | copiale | substitution | {
"type": "keyword",
"value": "MASONIC"
} | advanced | en | 146 | 218 | cipher_museum | 2.0 | public | null | null |
porta-v3-0083 | AUYMXPNGHXEQXCYJAUXGHPTNJNGVQNTEUMOJMUUQNEIGVWXEYEPIVNWOEBWNYRXWCWRTHDTIHZYIE | AUYMXPNGHXEQXCYJAUXGHPTNJNGVQNTEUMOJMUUQNEIGVWXEYEPIVNWOEBWNYRXWCWRTHDTIHZYIE | THE RIGHT OF THE PEOPLE TO KEEP AND BEAR ARMS SHALL NOT BE INFRINGED BY THE FEDERAL GOVERNMENT | porta | porta | polyalphabetic | {
"type": "keyword",
"value": "NAPLES"
} | intermediate | en | 77 | 77 | cipher_museum | 2.0 | public | null | null |
affine-v3-0525 | CAQTB JDI JVQMHIJC | CAQTB JDI JVQMHIJC | SOUND THE TRUMPETS | affine | affine | substitution | {
"a": 7,
"b": 6
} | beginner | en | 16 | 18 | cipher_museum | 2.0 | public | null | null |
two-square-v2-0246 | MIOCRPNACCSKBGISHEFV | MIOCRPNACCSKBGISHEFV | MISSION ACCOMPLISHED | two_square | two_square | polygraphic | {
"key1": "TRIUMPH",
"key2": "JUSTICE"
} | advanced | en | 20 | 20 | cipher_museum | 2.0 | public | null | null |
cda-0009990 | KKW YBKZU MB MZVEYYLJQPW YW N JZWBUC BGGC | KKW YBKZU MB MZVEYYLJQPW YW N JZWBUC BGGC | THE INDEX OF COINCIDENCE IS A USEFUL CLUE | beaufort | beaufort | null | {
"key": "DRAGON"
} | medium | en | 34 | 34 | synthetic_educational | null | null | [] | |
argenti-v2-0334 | 75 20 29 33 11 16 59 69 46 63 44 38 29 42 77 28 18 11 68 41 28 27 75 20 11 58 87 65 42 63 77 28 21 69 44 57 11 18 38 28 88 75 29 27 11 22 28 87 42 39 75 63 33 58 59 71 64 69 65 29 22 20 11 77 33 87 44 42 63 25 87 38 63 69 37 65 28 27 86 11 57 | 75 20 29 33 11 16 59 69 46 63 44 38 29 42 77 28 18 11 68 41 28 27 75 20 11 58 87 65 42 63 77 28 21 69 44 57 11 18 38 28 88 75 29 27 11 22 28 87 42 39 75 63 33 58 59 71 64 69 65 29 22 20 11 77 33 87 44 42 63 25 87 38 63 69 37 65 28 27 86 11 57 | THOSE WHO CANNOT REMEMBER THE PAST ARE CONDEMNED TO REPEAT IT AS PHILOSOPHER SANTAYANA OBSERVED | argenti | argenti | nomenclator | {
"type": "seed",
"value": "VATICAN"
} | expert | en | 162 | 242 | cipher_museum | 2.0 | public | null | null |
great-cipher-v3-0308 | 125 114 182 154 164 140 141 157 180 175 149 116 121 149 121 156 179 118 101 100 170 119 174 176 181 141 118 158 133 162 154 141 111 158 133 117 152 118 160 178 162 101 100 182 110 125 114 169 111 138 170 107 106 170 140 177 119 154 100 101 174 158 108 146 175 112 125 146 170 125 105 101 100 147 119 142 176 181 141 118 ... | 125 114 182 154 164 140 141 157 180 175 149 116 121 149 121 156 179 118 101 100 170 119 174 176 181 141 118 158 133 162 154 141 111 158 133 117 152 118 160 178 162 101 100 182 110 125 114 169 111 138 170 107 106 170 140 177 119 154 100 101 174 158 108 146 175 112 125 146 170 125 105 101 100 147 119 142 176 181 141 118 ... | IMMANUEL KANT PROPOSED THAT WE SHOULD ACT ONLY ACCORDING TO THAT MAXIM BY WHICH WE CAN AT THE SAME TIME WILL THAT IT SHOULD BECOME A UNIVERSAL LAW THIS CATEGORICAL IMPERATIVE DEFINES MORAL DUTY | great_cipher | great_cipher | nomenclator | {
"type": "seed",
"value": "FRANCE"
} | expert | en | 366 | 487 | cipher_museum | 2.0 | public | null | null |
kryha-v2-0182 | NMGPLONAUEFYAFZMWFCQXXNWWSSQLQQQBTSQAIMNKDMQXQUKOKZFDZDAVAFWPUUHQTW | NMGPLONAUEFYAFZMWFCQXXNWWSSQLQQQBTSQAIMNKDMQXQUKOKZFDZDAVAFWPUUHQTW | I KNOW NOT WHAT COURSE OTHERS MAY TAKE BUT AS FOR ME GIVE ME LIBERTY OR GIVE ME DEATH | kryha | kryha | machine | {
"type": "keyword",
"value": "VIENNA"
} | expert | en | 67 | 67 | cipher_museum | 2.0 | public | null | null |
columnar-transposition-v3-0173 | NDCVHSNTGTDSASHTEEALEAETERUCRNORRSVORTVSGIEELGLOSFCOTIENEOSEIBHETALVPOMWVPOUAIAOI | NDCVHSNTGTDSASHTEEALEAETERUCRNORRSVORTVSGIEELGLOSFCOTIENEOSEIBHETALVPOMWVPOUAIAOI | DARWIN OBSERVED THAT SPECIES EVOLVE THROUGH NATURAL SELECTION OVER VAST SPANS OF GEOLOGIC TIME | columnar_transposition | columnar_transposition | transposition | {
"type": "keyword",
"value": "FORTRESS"
} | intermediate | en | 81 | 81 | cipher_museum | 2.0 | public | null | null |
adfgvx-v2-0128 | ADGFGXDAFXAVDDDGAGFGDXAFDXAAXGGAAVDGAFDFFGAGAG | ADGFGXDAFXAVDDDGAGFGDXAFDXAAXGGAAVDGAFDFFGAGAG | CARTHAGE MUST BE DESTROYED | adfgvx | adfgvx | fractionation | {
"polybius": "LIBERTY",
"columnar": "FREEDOM"
} | advanced | en | 46 | 46 | cipher_museum | 2.0 | public | null | null |
diana-v2-0534 | JJMBPCGLRNBLVFBLELZ | JJMBPCGLRNBLVFBLELZ | WISDOM GUARDS THE GATE | diana | diana | polyalphabetic | {
"type": "keyword",
"value": "FREEDOM"
} | intermediate | en | 19 | 19 | cipher_museum | 2.0 | public | null | null |
caesar-v2-1081 | HVS GSQFSH CT USHHWBU OVSOR WG USHHWBU GHOFHSR CBS GHSD OH O HWAS USHG MCI JSFM TOF WBRSSR | HVS GSQFSH CT USHHWBU OVSOR WG USHHWBU GHOFHSR CBS GHSD OH O HWAS USHG MCI JSFM TOF WBRSSR | THE SECRET OF GETTING AHEAD IS GETTING STARTED ONE STEP AT A TIME GETS YOU VERY FAR INDEED | caesar | caesar | substitution | {
"type": "shift",
"value": 14
} | beginner | en | 73 | 90 | cipher_museum | 2.0 | public | null | null |
porta-v3-0454 | OWUKFLNEEPXTVLEJGXT | OWUKFLNEEPXTVLEJGXT | MEASURE TWICE CUT ONCE | porta | porta | polyalphabetic | {
"type": "keyword",
"value": "FLORENT"
} | intermediate | en | 19 | 19 | cipher_museum | 2.0 | public | null | null |
bifid-v3-0369 | DMIOTHHEHPLHASRCIBEFISUFRCFKCHPFQPDVIRDEMQINQPQZBQKZPHCERQQTMRUTUFCUAZPHGUTVQYAXRMK | DMIOTHHEHPLHASRCIBEFISUFRCFKCHPFQPDVIRDEMQINQPQZBQKZPHCERQQTMRUTUFCUAZPHGUTVQYAXRMK | RSA ENCRYPTION RELIES ON THE MATHEMATICAL DIFFICULTY OF FACTORING THE PRODUCT OF TWO LARGE PRIMES | bifid | bifid | fractionation | {
"type": "keyword",
"value": "FREEDOM"
} | advanced | en | 83 | 83 | cipher_museum | 2.0 | public | null | null |
nihilist-v3-0015 | 65 37 59 87 44 30 45 27 65 59 37 46 55 55 | 65 37 59 87 44 30 45 27 65 59 37 46 55 55 | THE SIEGE BEGINS | nihilist | nihilist | fractionation | {
"polybius": "PALACE",
"keyword": "BATTLE"
} | advanced | en | 28 | 41 | cipher_museum | 2.0 | public | null | null |
trifid-v2-0210 | KWONLEAOIWDAHHTAEIRLEFVWLGCNIARFEL+JDCPAWCEDWDUAIYTPDCCGFTPAD+ILKDGJULOYMDJFHEWOFIM | KWONLEAOIWDAHHTAEIRLEFVWLGCNIARFEL+JDCPAWCEDWDUAIYTPDCCGFTPAD+ILKDGJULOYMDJFHEWOFIM | KNOWLEDGE WITHOUT WISDOM IS A DANGEROUS THING AND WISDOM WITHOUT COURAGE IS ULTIMATELY WORTHLESS | trifid | trifid | fractionation | {
"type": "keyword",
"value": "FORTRESS"
} | advanced | en | 83 | 83 | cipher_museum | 2.0 | public | null | null |
kama-sutra-v2-0001 | QGL MUL UZ OYZQ | QGL MUL UZ OYZQ | THE DIE IS CAST | kama_sutra | kama_sutra | substitution | {
"type": "keyword",
"value": "SANSKRIT"
} | intermediate | en | 12 | 15 | cipher_museum | 2.0 | public | null | null |
trifid-v2-0192 | TOHCDFRFJCDOKOJHTIINFIUJLYUTFGRCEHWD+BEUJ+NHSDGCILFCEHODPBOIP+IDKUFTDMRINDEUR | TOHCDFRFJCDOKOJHTIINFIUJLYUTFGRCEHWD+BEUJ+NHSDGCILFCEHODPBOIP+IDKUFTDMRINDEUR | THE FEAR OF THE LORD IS THE BEGINNING OF WISDOM AND KNOWLEDGE OF THE HOLY ONE IS UNDERSTANDING | trifid | trifid | fractionation | {
"type": "keyword",
"value": "FORTRESS"
} | advanced | en | 77 | 77 | cipher_museum | 2.0 | public | null | null |
sigaba-236 | EYUDRRMHUHFVFYYCIAEKPITQYFRMCHMFNULVODNXADGKNNVGVAJPYWHHUDHXTMZZFBRKXBYUMPEIKSYBKTXVCRGOZTUUXZPXZSQCUQNLZUYAATUTOKABTVCNVCLYUXBUGBBUBMDHBTUFUGPKVOAFQ | EYUDRRMHUHFVFYYCIAEKPITQYFRMCHMFNULVODNXADGKNNVGVAJPYWHHUDHXTMZZFBRKXBYUMPEIKSYBKTXVCRGOZTUUXZPXZSQCUQNLZUYAATUTOKABTVCNVCLYUXBUGBBUBMDHBTUFUGPKVOAFQ | 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 | sigaba | sigaba | machine | {
"type": "seed",
"value": "MUSEUM"
} | expert | en | 149 | 149 | cipher_museum | 0.2 | public | null | null |
caesar-vf-0137 | FQDZSDQ KNUD GZSG MN LZM SGZM SGHR SGZS Z LZM KZX CNVM GHR KHED ENQ GHR EQHDMCR ZMC AQDSGQDM | FQDZSDQ KNUD GZSG MN LZM SGZM SGHR SGZS Z LZM KZX CNVM GHR KHED ENQ GHR EQHDMCR ZMC AQDSGQDM | GREATER LOVE HATH NO MAN THAN THIS THAT A MAN LAY DOWN HIS LIFE FOR HIS FRIENDS AND BRETHREN | caesar | caesar | substitution | {
"type": "shift",
"value": 25
} | beginner | en | 74 | 92 | cipher_museum | 2.0 | public | null | null |
chaocipher-v2-0301 | AWKREKUSZRCDDKRBGUPRHXWBQCYBLTCKPWBUFESSOQAUGSASKQJLDVRVFJBGDRRKRTZIAF | AWKREKUSZRCDDKRBGUPRHXWBQCYBLTCKPWBUFESSOQAUGSASKQJLDVRVFJBGDRRKRTZIAF | THE QUALITY OF MERCY IS NOT STRAINED IT DROPPETH AS THE GENTLE RAIN FROM HEAVEN ABOVE | chaocipher | chaocipher | machine | {
"type": "keyword",
"value": "FREEDOM"
} | advanced | en | 70 | 70 | cipher_museum | 2.0 | public | null | null |
copiale-141 | Q2 M9 L3 I5 O7 O8 H6 G6 B1 R2 Y5 S8 I7 H4 X5 Z6 L3 B7 | Q2 M9 L3 I5 O7 O8 H6 G6 B1 R2 Y5 S8 I7 H4 X5 Z6 L3 B7 | THE BRIDGE IS SECURED | copiale | copiale | substitution | {
"type": "keyword",
"value": "SECRET"
} | advanced | en | 36 | 53 | cipher_museum | 0.2 | public | null | null |
cda-0020119 | 859 822 813 999 837 812 854 855 801 820 813 999 868 801 855 999 822 825 811 809 814 841 999 803 862 857 999 840 844 858 999 854 814 806 862 851 813 999 | 859 822 813 999 837 812 854 855 801 820 813 999 868 801 855 999 822 825 811 809 814 841 999 803 862 857 999 840 844 858 999 854 814 806 862 851 813 999 | THE MESSAGE WAS HIDDEN BUT NOT SECURE | culper_ring | culper_ring | null | {} | medium | en | 31 | 31 | synthetic_educational | null | null | [
"codebook_frequency",
"number_range_analysis"
] | Culper Ring code: Washington's three-digit codebook numbers (800–999 range). |
two-square-v2-0336 | RGKOEGMKDORVUKNGQKDITSHNLCTIONTQTILRDUSAORCETFQUNFMOTXKAROMTHEEAQCKOSUSKRFQAHNQCHETA | RGKOEGMKDORVUKNGQKDITSHNLCTIONTQTILRDUSAORCETFQUNFMOTXKAROMTHEEAQCKOSUSKRFQAHNQCHETA | THE REGIMENT WILL HOLD ITS POSITION UNTIL REINFORCEMENTS ARRIVE FROM THE EASTERN COMMAND POST HERE | two_square | two_square | polygraphic | {
"key1": "TRIUMPH",
"key2": "JUSTICE"
} | advanced | en | 84 | 84 | cipher_museum | 2.0 | public | null | null |
fialka-v2-0392 | LLYIHAVJDFXDRD | LLYIHAVJDFXDRD | PRESS THE ATTACK | fialka | fialka | machine | {
"type": "seed",
"value": "SPUTNIK"
} | expert | en | 14 | 14 | cipher_museum | 2.0 | public | null | null |
cda-0017960 | THEKA SISKZ EXAMI NATIZ NFIND SREPZ ATEDX RIGRX MSINX IPHER TEXTK ERCKH OFFSX RINCI PLESZ YSTHZ SYSTX MMUST BESEZ UREEZ ENIFX NEMYK NOWSA LGORI THMZX | THEKA SISKZ EXAMI NATIZ NFIND SREPZ ATEDX RIGRX MSINX IPHER TEXTK ERCKH OFFSX RINCI PLESZ YSTHZ SYSTX MMUST BESEZ UREEZ ENIFX NEMYK NOWSA LGORI THMZX | THE KASISKI EXAMINATION FINDS REPEATED TRIGRAMS IN CIPHERTEXT KERCKHOFFS PRINCIPLE SAYS THE SYSTEM MUST BE SECURE EVEN IF ENEMY KNOWS ALGORITHM | commercial_code | commercial_code | null | {} | hard | en | 125 | 125 | synthetic_educational | null | null | [
"codebook_frequency",
"five_letter_group_analysis"
] | Commercial code: five-letter groups from a codebook, often ending in X or Z. |
fractionated-morse-065 | NCUGBMRCXPCVJHATTD | NCUGBMRCXPCVJHATTD | THE COAST IS CLEAR | fractionated_morse | fractionated_morse | fractionation | {
"type": "keyword",
"value": "CIPHER"
} | advanced | en | 18 | 18 | cipher_museum | 0.2 | public | null | null |
nomenclator-041 | 01 19 11 14 15 20 23 08 01 20 25 15 21 18 03 15 21 14 20 18 25 03 01 14 04 15 06 15 18 25 15 21 02 21 20 23 08 01 20 25 15 21 03 01 14 04 15 | 01 19 11 14 15 20 23 08 01 20 25 15 21 18 03 15 21 14 20 18 25 03 01 14 04 15 06 15 18 25 15 21 02 21 20 23 08 01 20 25 15 21 03 01 14 04 15 | ASK NOT WHAT YOUR COUNTRY CAN DO FOR YOU BUT WHAT YOU CAN DO | nomenclator | nomenclator | nomenclator | {
"type": "none",
"value": null
} | expert | en | 94 | 140 | cipher_museum | 0.2 | public | null | null |
cda-0020998 | 06294 2552 01611 04809 04467 01669 06293 2838 04122 1608 5122 0394 1288 2904 6064 6356 2591 01596 04783 05733 1662 06327 02852 01030 00404 03848 3862 07948 06649 4445 00677 05652 01606 00378 03553 00407 0664 03821 1630 2903 01959 6654 06011 01623 01289 00946 4758 05700 5690 01632 0950 06338 03772 7894 6283 2518 1645 37... | 06294 2552 01611 04809 04467 01669 06293 2838 04122 1608 5122 0394 1288 2904 6064 6356 2591 01596 04783 05733 1662 06327 02852 01030 00404 03848 3862 07948 06649 4445 00677 05652 01606 00378 03553 00407 0664 03821 1630 2903 01959 6654 06011 01623 01289 00946 4758 05700 5690 01632 0950 06338 03772 7894 6283 2518 1645 37... | THE ONE TIME PAD IS THEORETICALLY UNBREAKABLE IF USED CORRECTLY THE LIBRARY PRESERVES KNOWLEDGE FOR THE COMMUNITY AN AFFINE CIPHER APPLIES A LINEAR FUNCTION TO EACH LETTER THE DETECTIVE STUDIES PATTERNS BEFORE MAKING CLAIMS | zimmermann | zimmermann | null | {} | hard | en | 190 | 190 | synthetic_educational | null | null | [
"codebook_frequency",
"number_group_analysis"
] | Zimmermann Telegram code: WWI German diplomatic numeric codebook cipher. |
copiale-v2-0107 | K3 C3 X7 K7 T7 B0 C1 T0 R1 Y0 V4 T1 I8 L9 C8 L5 V4 I3 K8 B8 H7 P3 A2 R5 S7 I1 P5 K7 K3 A4 P2 T4 T2 T0 T8 C4 Z1 N7 P5 R5 L0 G6 M6 U4 T0 T9 T4 C1 O0 O4 L1 P9 T8 B0 N7 O0 S6 S3 R7 R8 M2 O4 B8 R7 S0 I4 D2 A4 T9 B6 I1 R7 K0 N7 M2 B0 O5 P6 C8 M8 O2 P9 V4 Q1 A1 C4 L5 K7 O4 S1 J9 R7 Q8 T1 O5 T1 A1 K0 B5 G6 O3 T1 O4 X0 S6 M9 K8... | K3 C3 X7 K7 T7 B0 C1 T0 R1 Y0 V4 T1 I8 L9 C8 L5 V4 I3 K8 B8 H7 P3 A2 R5 S7 I1 P5 K7 K3 A4 P2 T4 T2 T0 T8 C4 Z1 N7 P5 R5 L0 G6 M6 U4 T0 T9 T4 C1 O0 O4 L1 P9 T8 B0 N7 O0 S6 S3 R7 R8 M2 O4 B8 R7 S0 I4 D2 A4 T9 B6 I1 R7 K0 N7 M2 B0 O5 P6 C8 M8 O2 P9 V4 Q1 A1 C4 L5 K7 O4 S1 J9 R7 Q8 T1 O5 T1 A1 K0 B5 G6 O3 T1 O4 X0 S6 M9 K8... | 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 | copiale | copiale | substitution | {
"type": "keyword",
"value": "MASONIC"
} | advanced | en | 286 | 428 | cipher_museum | 2.0 | public | null | null |
cda-0010785 | GUR YVOENEL CERFREIRF XABJYRQTR SBE GUR PBZZHAVGL | GUR YVOENEL CERFREIRF XABJYRQTR SBE GUR PBZZHAVGL | THE LIBRARY PRESERVES KNOWLEDGE FOR THE COMMUNITY | rot13 | rot13 | null | {
"shift": 13
} | medium | en | 43 | 43 | synthetic_educational | null | null | [] | |
culper-ring-v3-0070 | 998 806 800 811 808 811 804 814 999 998 815 814 808 813 819 804 803 999 129 998 819 804 811 804 818 802 814 815 804 999 116 100 998 807 804 800 821 804 813 818 999 102 998 802 814 813 805 808 817 812 804 803 999 107 100 998 804 800 817 819 807 999 998 814 817 801 808 819 818 999 100 998 818 820 813 999 | 998 806 800 811 808 811 804 814 999 998 815 814 808 813 819 804 803 999 129 998 819 804 811 804 818 802 814 815 804 999 116 100 998 807 804 800 821 804 813 818 999 102 998 802 814 813 805 808 817 812 804 803 999 107 100 998 804 800 817 819 807 999 998 814 817 801 808 819 818 999 100 998 818 820 813 999 | GALILEO POINTED HIS TELESCOPE AT THE HEAVENS AND CONFIRMED THAT THE EARTH ORBITS THE SUN | culper_ring | culper_ring | codebook | {
"type": "none",
"value": null
} | expert | en | 228 | 303 | cipher_museum | 2.0 | public | null | null |
copiale-086 | A7 U4 M8 Y8 Q5 V4 C7 V3 O2 V7 A2 Z1 W7 W8 K6 | A7 U4 M8 Y8 Q5 V4 C7 V3 O2 V7 A2 Z1 W7 W8 K6 | FORWARD MARCH NOW | copiale | copiale | substitution | {
"type": "keyword",
"value": "CIPHER"
} | advanced | en | 30 | 44 | cipher_museum | 0.2 | public | null | null |
babington-v2-0044 | ⟨w13⟩ ⟨a08⟩ ⟨a03⟩ ⟨n01⟩ ⟨a15⟩ ⟨w21⟩ ⟨w32⟩ ⟨w16⟩ ⟨w02⟩ ⟨a12⟩ ⟨w21⟩ ⟨a15⟩ ⟨w23⟩ | ⟨w13⟩ ⟨a08⟩ ⟨a03⟩ ⟨n01⟩ ⟨a15⟩ ⟨w21⟩ ⟨w32⟩ ⟨w16⟩ ⟨w02⟩ ⟨a12⟩ ⟨w21⟩ ⟨a15⟩ ⟨w23⟩ | ANNUIT COEPTIS | babington | babington | nomenclator | {
"type": "seed",
"value": "WALSINGHAM"
} | expert | en | 65 | 77 | cipher_museum | 2.0 | public | null | null |
zimmermann-042 | 99999 90002 90017 90024 90015 90019 90014 90006 90017 90000 90015 90007 90024 99998 00006 00000 99999 90015 90017 90000 90002 90019 90008 90002 90004 99998 00001 99999 90018 90004 90002 90020 90017 90008 90013 90006 99998 99999 90002 90014 90012 90012 90020 90013 90008 90002 90000 90019 90008 90014 90013 90018 99998 00... | 99999 90002 90017 90024 90015 90019 90014 90006 90017 90000 90015 90007 90024 99998 00006 00000 99999 90015 90017 90000 90002 90019 90008 90002 90004 99998 00001 99999 90018 90004 90002 90020 90017 90008 90013 90006 99998 99999 90002 90014 90012 90012 90020 90013 90008 90002 90000 90019 90008 90014 90013 90018 99998 00... | CRYPTOGRAPHY IS THE PRACTICE OF SECURING COMMUNICATIONS FROM ADVERSARIES | zimmermann | zimmermann | codebook | {
"type": "none",
"value": null
} | expert | en | 335 | 401 | cipher_museum | 0.2 | public | null | null |
hill-195 | LDTXFDEKQHMYBDDP | LDTXFDEKQHMYBDDP | OPERATION BEGINS | hill | hill | polygraphic | {
"a": 5,
"b": 3,
"c": 2,
"d": 7
} | advanced | en | 16 | 16 | cipher_museum | 0.2 | public | null | null |
nihilist-195 | 56 44 42 57 75 33 48 44 56 76 23 57 | 56 44 42 57 75 33 48 44 56 76 23 57 | THE TRAP IS SET | nihilist | nihilist | fractionation | {
"polybius": "ENIGMA",
"keyword": "NIHIL"
} | advanced | en | 24 | 35 | cipher_museum | 0.2 | public | null | null |
atbash-es-020 | XZNZILM JFV HV WFVINV HV OL OOVEZ OZ XLIIRVMGV | XZNZILM JFV HV WFVINV HV OL OOVEZ OZ XLIIRVMGV | CAMARON QUE SE DUERME SE LO LLEVA LA CORRIENTE | atbash | atbash | substitution | {
"type": "none",
"value": null
} | beginner | es | 38 | 46 | cipher_museum | 0.2 | public | null | null |
double-transposition-103 | MOROPBVNTELXHAHUZVREYSWNUHEFERACRGOKIDERJQTTOIE | MOROPBVNTELXHAHUZVREYSWNUHEFERACRGOKIDERJQTTOIE | THE QUICK BROWN FOX JUMPS OVER THE LAZY DOG NEAR THE RIVER | double_transposition | double_transposition | transposition | {
"key1": "CIPHER",
"key2": "MUSEUM"
} | advanced | en | 47 | 47 | cipher_museum | 0.2 | public | null | null |
great-cipher-v2-0019 | 124 148 154 125 108 130 158 140 156 166 116 | 124 148 154 125 108 130 158 140 156 166 116 | CONTACT HAS BEEN MADE | great_cipher | great_cipher | nomenclator | {
"type": "seed",
"value": "VERSAILLES"
} | expert | en | 33 | 43 | cipher_museum | 2.0 | public | null | null |
cda-0015291 | AABA BAAA AAAB AAAA BABA AAAB AABA BAAB BABB AAAB AABA AAAA BBAB AAAB AAAB AAAA AABB BAAB BABB AAAB BAAB ABAA BBBA AAAA ABAA ABBA AABB ABBA ABAA AAAA BAAA BABA BAAB BABA ABBA AAAA AABB AAAA AAAA BABB ABBA BAAA BBAA BAAA BABA AAAB AAAA AAAB BAAA AABA ABAB AAAA AABA AABB AAAB ABAA AAAB ABBA BBAA BBBA AAAA ABAA BABA ABAA ... | AABA BAAA AAAB AAAA BABA AAAB AABA BAAB BABB AAAB AABA AAAA BBAB AAAB AAAB AAAA AABB BAAB BABB AAAB BAAB ABAA BBBA AAAA ABAA ABBA AABB ABBA ABAA AAAA BAAA BABA BAAB BABA ABBA AAAA AABB AAAA AAAA BABB ABBA BAAA BBAA BAAA BABA AAAB AAAA AAAB BAAA AABA ABAB AAAA AABA AABB AAAB ABAA AAAB ABBA BBAA BBBA AAAA ABAA BABA ABAA ... | FAIL CLOSED IS A POSTURE NOT A SLOGAN A MODEL CAN CLASSIFY PATTERNS BUT IT CAN ALSO BE WRONG SECURITY CLAIMS SHOULD BE TESTED UNDER SCRUTINY | bacon_cipher | bacon_cipher | null | {} | hard | en | 575 | 575 | synthetic_educational | null | null | [
"five_bit_decode",
"ab_frequency_analysis"
] | Bacon's biliteral cipher: each letter encoded as 5-bit A/B string. |
venona-pad-reuse-v3-0090 | 4HPBKV4HIA2LPRLDMT5HFWQXIAYCMPEIZIMJ5IGHCWIF7NAXHOGSMGNU2FCV5OFNGV4HLNGTAEJTGH | 4HPBKV4HIA2LPRLDMT5HFWQXIAYCMPEIZIMJ5IGHCWIF7NAXHOGSMGNU2FCV5OFNGV4HLNGTAEJTGH | THE BIRTHDAY PARADOX SHOWS THAT COLLISIONS IN HASH FUNCTIONS OCCUR FAR SOONER THAN EXPECTED | venona_pad_reuse | venona_pad_reuse | stream | {
"type": "keyword",
"value": "PALACE"
} | expert | en | 78 | 78 | cipher_museum | 2.0 | public | null | null |
gronsfeld-v2-0202 | CNNWPKVURTQEGGFVQFGUKIPCVGFTCNNARQKPVUCPFCYCKVHWTVJGTQTFGTUHTQOJKIJEQOOCPFPQY | CNNWPKVURTQEGGFVQFGUKIPCVGFTCNNARQKPVUCPFCYCKVHWTVJGTQTFGTUHTQOJKIJEQOOCPFPQY | ALL UNITS PROCEED TO DESIGNATED RALLY POINTS AND AWAIT FURTHER ORDERS FROM HIGH COMMAND NOW | gronsfeld | gronsfeld | polyalphabetic | {
"type": "numeric",
"value": "22222"
} | intermediate | en | 77 | 77 | cipher_museum | 2.0 | public | null | null |
atbash-fr-025 | VGIV LF MV KZH VGIV GVOOV VHG OZ JFVHGRLM | VGIV LF MV KZH VGIV GVOOV VHG OZ JFVHGRLM | ETRE OU NE PAS ETRE TELLE EST LA QUESTION | atbash | atbash | substitution | {
"type": "none",
"value": null
} | beginner | fr | 33 | 41 | cipher_museum | 0.2 | public | null | null |
venona-pad-reuse-v2-0035 | HNNOBSLT2UQX | HNNOBSLT2UQX | IN GOD WE TRUST | venona_pad_reuse | venona_pad_reuse | stream | {
"type": "keyword",
"value": "PALACE"
} | expert | en | 12 | 12 | cipher_museum | 2.0 | public | null | null |
cda-0017535 | 15 16 5 14 19 15 21 18 3 5 20 15 15 12 19 1 12 12 15 23 9 14 4 5 16 5 14 4 5 14 20 22 5 18 9 6 9 3 1 20 9 15 14 | 15 16 5 14 19 15 21 18 3 5 20 15 15 12 19 1 12 12 15 23 9 14 4 5 16 5 14 4 5 14 20 22 5 18 9 6 9 3 1 20 9 15 14 | OPEN SOURCE TOOLS ALLOW INDEPENDENT VERIFICATION | aeneas_tacticus | aeneas_tacticus | null | {} | medium | en | 43 | 43 | synthetic_educational | null | null | [
"sequential_number_decode",
"frequency_analysis"
] | Aeneas Tacticus: Greek sequential-number cipher; A=1…Z=26. |
four-square-v2-0273 | QLSHUCDTVUVTDGPSGSNSLUMS | QLSHUCDTVUVTDGPSGSNSLUMS | TORPEDO AWAY ALL HANDS BRACE | four_square | four_square | polygraphic | {
"key1": "TRIUMPH",
"key2": "JUSTICE"
} | advanced | en | 24 | 24 | cipher_museum | 2.0 | public | null | null |
great-cipher-v3-0123 | 173 150 174 179 127 177 182 101 167 117 114 135 169 156 102 160 114 | 173 150 174 179 127 177 182 101 167 117 114 135 169 156 102 160 114 | THE ALCHEMIST SUCCEEDS | great_cipher | great_cipher | nomenclator | {
"type": "seed",
"value": "ROSSIGNOL"
} | expert | en | 51 | 67 | cipher_museum | 2.0 | public | null | null |
kama-sutra-131 | XMUGNY FO DIUGZ | XMUGNY FO DIUGZ | CHANGE OF PLANS | kama_sutra | kama_sutra | substitution | {
"type": "keyword",
"value": "SECRET"
} | intermediate | en | 13 | 15 | cipher_museum | 0.2 | public | null | null |
adfgvx-v3-0192 | DGFAAGDFFFAVDVAVAADVDGFXADDAFVAGDAGXFVAGGXVDFVAVDAGAVAGAFDAAAFGFVDAFVAXDDVFGDVAAAGDXGDFGAVAAAGDDDDAGFVGAAVFDADAFFFFXAVAVDAFDFGAFAXDAAXGGGFDXAAGAVADGXGDDADAFVAGADDDGAF | DGFAAGDFFFAVDVAVAADVDGFXADDAFVAGDAGXFVAGGXVDFVAVDAGAVAGAFDAAAFGFVDAFVAXDDVFGDVAAAGDXGDFGAVAAAGDDDDAGFVGAAVFDADAFFFFXAVAVDAFDFGAFAXDAAXGGGFDXAAGAVADGXGDDADAFVAGADDDGAF | DIFFIE AND HELLMAN INVENTED PUBLIC KEY CRYPTOGRAPHY IN NINETEEN SEVENTY SIX CHANGING EVERYTHING | adfgvx | adfgvx | fractionation | {
"polybius": "LIBERTY",
"columnar": "FREEDOM"
} | advanced | en | 166 | 166 | cipher_museum | 2.0 | public | null | null |
cda-0008889 | PDKBINLERASMETSSPITHOTUOAEFTENITULNIELOCIRLDCRPASOCOEANBLUNEWNTWRPBOTITIOEHSPONVORAATEODEN | PDKBINLERASMETSSPITHOTUOAEFTENITULNIELOCIRLDCRPASOCOEANBLUNEWNTWRPBOTITIOEHSPONVORAATEODEN | PATTERN WORDS HELP BREAK MONOALPHABETIC SUBSTITUTION OPEN SOURCE TOOLS ALLOW INDEPENDENT VERIFICATION | scytale | scytale | null | {
"cols": 10
} | hard | en | 90 | 90 | synthetic_educational | null | null | [] | |
trifid-v2-0239 | GTDYOTVUWGABNVANCKIDNCKID+SIKFFDEJJQFOPICCIDONDPLWTQEUOJRZILMTDKF+PSHCDFYLHCAVDBRODEKOTALN+OFHKLIJQIOWTBGFPOOGFOPIXDDGPETOC+GFYDSCJCCVAT+UMUFFPMUCPTQDFCMAJOVQIIPFIFTDIPI | GTDYOTVUWGABNVANCKIDNCKID+SIKFFDEJJQFOPICCIDONDPLWTQEUOJRZILMTDKF+PSHCDFYLHCAVDBRODEKOTALN+OFHKLIJQIOWTBGFPOOGFOPIXDDGPETOC+GFYDSCJCCVAT+UMUFFPMUCPTQDFCMAJOVQIIPFIFTDIPI | 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 | trifid | trifid | fractionation | {
"type": "keyword",
"value": "FORTRESS"
} | advanced | en | 169 | 169 | cipher_museum | 2.0 | public | null | null |
cardano-autokey-v2-0104 | TLEDTKURKXVJUQBSNZDELAHTMALMVGXPWTOKRPGVVTDFKBASCEWLRTXENQUVUKCZVWAUYQHLITXWOENYTCVBWB | TLEDTKURKXVJUQBSNZDELAHTMALMVGXPWTOKRPGVVTDFKBASCEWLRTXENQUVUKCZVWAUYQHLITXWOENYTCVBWB | HEADQUARTERS CONFIRMS THAT THE INTELLIGENCE REPORT IS ACCURATE AND REQUIRES IMMEDIATE SWIFT ACTION | cardano_autokey | cardano_autokey | polyalphabetic | {
"type": "keyword",
"value": "MILAN"
} | advanced | en | 86 | 86 | cipher_museum | 2.0 | public | null | null |
cda-0014253 | TRANS POSIT IONCZ PHERX REARR ANGEL ETTEZ SWITH OUTSZ BSTIT UTION ROUTE CIPHE RSREA DAGRI DINAP RESCR IBEDG EOMET RICPX TTERN CRYPZ OGRAX HYREW ARDSP ATIEX CEAND CAREZ ULTHI NKINX | TRANS POSIT IONCZ PHERX REARR ANGEL ETTEZ SWITH OUTSZ BSTIT UTION ROUTE CIPHE RSREA DAGRI DINAP RESCR IBEDG EOMET RICPX TTERN CRYPZ OGRAX HYREW ARDSP ATIEX CEAND CAREZ ULTHI NKINX | TRANSPOSITION CIPHERS REARRANGE LETTERS WITHOUT SUBSTITUTION ROUTE CIPHERS READ A GRID IN A PRESCRIBED GEOMETRIC PATTERN CRYPTOGRAPHY REWARDS PATIENCE AND CAREFUL THINKING | commercial_code | commercial_code | null | {} | hard | en | 150 | 150 | synthetic_educational | null | null | [
"codebook_frequency",
"five_letter_group_analysis"
] | Commercial code: five-letter groups from a codebook, often ending in X or Z. |
cda-0012938 | guide opens outer depth enter depot until carry among three inner outer night after lower three other outer light scout early xerox point light among | guide opens outer depth enter depot until carry among three inner outer night after lower three other outer light scout early xerox point light among | GOOD EDUCATIONAL TOOLS EXPLAIN THEIR LIMITS | 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. |
confederate-vigenere-v3-0593 | WTGCKFXRXZBJOEFYBLJZVRWZMYGGTKXZFLZZOPGOSSNYGILVRWQYRIZUCUWSMJNVTNLWDUCRZLUYFT | WTGCKFXRXZBJOEFYBLJZVRWZMYGGTKXZFLZZOPGOSSNYGILVRWQYRIZUCUWSMJNVTNLWDUCRZLUYFT | BLESSED ARE THE MEEK FOR THEY SHALL INHERIT THE EARTH AND THE PEACEMAKERS SHALL BE CALLED SONS | confederate_vigenere | confederate_vigenere | polyalphabetic | {
"type": "keyword",
"value": "VICKSBURG"
} | intermediate | en | 78 | 78 | cipher_museum | 2.0 | public | null | null |
jn25-v2-0253 | 21244 21232 21239 21238 21233 21239 21233 21243 21237 21235 21243 21244 | 21244 21232 21239 21238 21233 21239 21233 21243 21237 21235 21243 21244 | THE DIE IS CAST | jn25 | jn25 | codebook | {
"type": "additive",
"value": "11235"
} | expert | en | 60 | 71 | cipher_museum | 2.0 | public | null | null |
sigaba-v2-0125 | GXFUTTAVPBRVYCTGJKNPLTWQABDFMCHUZEPNGMIDPXYHFTXOVPNRGNMGAHCKGYRQUTCIDYTIRXUYXGJUAFPPYUKSZFCOLHCXONPWUTTIUSMEXVYPQAUPTDIURGFABHCNPUSJZSBWQIYONUKUBPFMCCBBMGPIENRZPVZMXKQOXNZV | GXFUTTAVPBRVYCTGJKNPLTWQABDFMCHUZEPNGMIDPXYHFTXOVPNRGNMGAHCKGYRQUTCIDYTIRXUYXGJUAFPPYUKSZFCOLHCXONPWUTTIUSMEXVYPQAUPTDIURGFABHCNPUSJZSBWQIYONUKUBPFMCCBBMGPIENRZPVZMXKQOXNZV | THE GREAT CIPHER OF LOUIS XIV INVENTED BY ANTOINE AND BONAVENTURE ROSSIGNOL USED A NOMENCLATOR OF OVER FIVE HUNDRED NUMBERS REPRESENTING SYLLABLES WORDS AND NULLS AND REMAINED UNBROKEN FOR TWO CENTURIES | sigaba | sigaba | machine | {
"type": "seed",
"value": "ECMMARK"
} | expert | en | 172 | 172 | cipher_museum | 2.0 | public | null | null |
autokey-v3-0551 | LFVMAUSAPRJHDLATIDUJE | LFVMAUSAPRJHDLATIDUJE | SONS OF LIBERTY ASSEMBLE | autokey | autokey | polyalphabetic | {
"type": "keyword",
"value": "TRIUMPH"
} | intermediate | en | 21 | 21 | cipher_museum | 2.0 | public | null | null |
chaocipher-v3-0252 | AWKINBVKHNCUOFMNL | AWKINBVKHNCUOFMNL | THE RAILWAY ARRIVES | chaocipher | chaocipher | machine | {
"type": "keyword",
"value": "FREEDOM"
} | advanced | en | 17 | 17 | cipher_museum | 2.0 | public | null | null |
slidex-v2-0214 | BJWMHDCBAVMXTXOUGOWXARWWOCRXUWVHNAFDGSEWXZILXJXRURLEURUCSXVGYTDSMZLVLSURZAOBFYAX | BJWMHDCBAVMXTXOUGOWXARWWOCRXUWVHNAFDGSEWXZILXJXRURLEURUCSXVGYTDSMZLVLSURZAOBFYAX | CLAUDE SHANNON PROVED THAT THE ONE TIME PAD ACHIEVES PERFECT SECRECY WHEN USED CORRECTLY ONCE | slidex | slidex | transposition | {
"type": "keyword",
"value": "LIBERTY"
} | advanced | en | 80 | 80 | cipher_museum | 2.0 | public | null | null |
straddling-checkerboard-v2-0252 | 74236262370233700233246262372416232256962351438222386324382992938237023824232167241342356920015262772561212314572823223292356121689471721016767083731222324386262321329293422232423452370832936236262325234238907423024982394225232172823626232002355142553240120238676 | 74236262370233700233246262372416232256962351438222386324382992938237023824232167241342356920015262772561212314572823223292356121689471721016767083731222324386262321329293422232423452370832936236262325234238907423024982394225232172823626232002355142553240120238676 | 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 | straddling_checkerboard | straddling_checkerboard | substitution | {
"type": "top_row",
"value": "LIONSTRACE"
} | advanced | en | 263 | 263 | cipher_museum | 2.0 | public | null | null |
cda-0021848 | .... .... .. ... . ..... ... . .. .... . .. .... .. . . .... .. ..... .... ... ..... .... .. . ..... .... ... . ..... .... .. ..... . . ..... .... ... . ... ... ... ... .... ..... .. ... . . ..... . .... .. .. . ..... .. . ... .... .... .. .... .... .. ... . ..... . ... ... .... ... ... | .... .... .. ... . ..... ... . .. .... . .. .... .. . . .... .. ..... .... ... ..... .... .. . ..... .... ... . ..... .... .. ..... . . ..... .... ... . ... ... ... ... .... ..... .. ... . . ..... . .... .. .. . ..... .. . ... .... .... .. .... .... .. ... . ..... . ... ... .... ... ... | THE LIBRARY PRESERVES KNOWLEDGE FOR THE COMMUNITY | tap_code | tap_code | null | {} | medium | en | 43 | 43 | 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. |
cda-0020102 | 7 15 15 4 5 4 21 3 1 20 9 15 14 1 12 20 15 15 12 19 5 24 16 12 1 9 14 20 8 5 9 18 12 9 13 9 20 19 8 9 12 12 3 9 16 8 5 18 21 19 5 19 12 9 14 5 1 18 1 12 7 5 2 18 1 20 15 5 14 3 18 25 16 20 2 12 15 3 11 19 15 6 12 5 20 20 5 18 19 16 21 2 12 9 3 9 14 6 18 1 19 20 18 21 3 20 21 18 5 4 5 19 5 18 22 5 19 3 1 18 5 6 21 12 4 ... | 7 15 15 4 5 4 21 3 1 20 9 15 14 1 12 20 15 15 12 19 5 24 16 12 1 9 14 20 8 5 9 18 12 9 13 9 20 19 8 9 12 12 3 9 16 8 5 18 21 19 5 19 12 9 14 5 1 18 1 12 7 5 2 18 1 20 15 5 14 3 18 25 16 20 2 12 15 3 11 19 15 6 12 5 20 20 5 18 19 16 21 2 12 9 3 9 14 6 18 1 19 20 18 21 3 20 21 18 5 4 5 19 5 18 22 5 19 3 1 18 5 6 21 12 4 ... | GOOD EDUCATIONAL TOOLS EXPLAIN THEIR LIMITS HILL CIPHER USES LINEAR ALGEBRA TO ENCRYPT BLOCKS OF LETTERS PUBLIC INFRASTRUCTURE DESERVES CAREFUL DESIGN A TRANSPARENT TOOL SHOULD SHOW ITS REASONING | aeneas_tacticus | aeneas_tacticus | null | {} | hard | en | 168 | 168 | synthetic_educational | null | null | [
"sequential_number_decode",
"frequency_analysis"
] | Aeneas Tacticus: Greek sequential-number cipher; A=1…Z=26. |
cda-0020014 | 91 17 22 64 22 25 33 35 25 66 79 48 50 60 14 62 49 33 11 63 2 60 60 48 3 81 43 67 23 61 72 3 33 40 82 80 59 70 24 87 96 82 93 40 50 52 72 70 72 68 21 76 81 46 14 50 33 45 67 46 32 43 87 1 25 93 26 99 86 93 68 94 23 99 35 34 41 63 25 93 45 81 35 2 23 50 2 3 50 88 49 61 68 22 62 60 17 22 82 30 63 94 2 67 22 68 67 41 91 8... | 91 17 22 64 22 25 33 35 25 66 79 48 50 60 14 62 49 33 11 63 2 60 60 48 3 81 43 67 23 61 72 3 33 40 82 80 59 70 24 87 96 82 93 40 50 52 72 70 72 68 21 76 81 46 14 50 33 45 67 46 32 43 87 1 25 93 26 99 86 93 68 94 23 99 35 34 41 63 25 93 45 81 35 2 23 50 2 3 50 88 49 61 68 22 62 60 17 22 82 30 63 94 2 67 22 68 67 41 91 8... | THE DETECTIVE STUDIES PATTERNS BEFORE MAKING CLAIMS DO NOT CONFUSE OBFUSCATION WITH ENCRYPTION CAESAR SHIFTED THE ALPHABET BY THREE POSITIONS | homophonic | homophonic | null | {} | hard | en | 122 | 122 | synthetic_educational | null | null | [
"frequency_analysis",
"multiple_ciphertext_attack"
] | Homophonic substitution: each letter maps to multiple possible numbers. |
adfgvx-v3-0150 | AFDDFDAXADVDAVFVGDXAVGAAAXDXFF | AFDDFDAXADVDAVFVGDXAVGAAAXDXFF | THE FACTORY ROARS | adfgvx | adfgvx | fractionation | {
"polybius": "LIBERTY",
"columnar": "FREEDOM"
} | advanced | en | 30 | 30 | cipher_museum | 2.0 | public | null | null |
cda-0002059 | BLNB OERS PITE WIUO ENEE EITL ECNA FXBS ERDL EDAT TIFS TIRT GCRL OMFK SBPX RCIE TOVS VUHM OHAK UANE OAOS SEEA TXBE SMEO GEOU FILD TTSO SLRF SNXT EYTX NROR RARS OLDD PUCB OTEO NIAL SPTA NXTI IUIS DPOA SIMM TEAE PNAH SPEN ATCX | BLNB OERS PITE WIUO ENEE EITL ECNA FXBS ERDL EDAT TIFS TIRT GCRL OMFK SBPX RCIE TOVS VUHM OHAK UANE OAOS SEEA TXBE SMEO GEOU FILD TTSO SLRF SNXT EYTX NROR RARS OLDD PUCB OTEO NIAL SPTA NXTI IUIS DPOA SIMM TEAE PNAH SPEN ATCX | PATTERN WORDS HELP BREAK MONOALPHABETIC SUBSTITUTION FAIL CLOSED IS A POSTURE NOT A SLOGAN THE DETECTIVE STUDIES PATTERNS BEFORE MAKING CLAIMS POLYBIUS ENCODED LETTERS AS PAIRS OF NUMBERS FROM ONE TO FIVE | double_transposition | double_transposition | null | {
"key1": "LIBERTY",
"key2": "SIGNAL"
} | hard | en | 180 | 180 | synthetic_educational | null | null | [
"key_length_search",
"anagram_recovery"
] | Double columnar transposition: apply columnar twice for stronger security. |
enigma-v2-0281 | UCMXIMYQYJSWAYFQNPPMA | UCMXIMYQYJSWAYFQNPPMA | PATIENCE BRINGS VICTORY | enigma | enigma | machine | {
"type": "rotor_start",
"value": "GHI"
} | expert | en | 21 | 21 | cipher_museum | 2.0 | public | null | null |
vic-v3-0083 | 783818183804867080228548683869380869180787925283684809568995879118289487095838686838680918080869080938086919590839460486828386828093808995910838682 | 783818183804867080228548683869380869180787925283684809568995879118289487095838686838680918080869080938086919590839460486828386828093808995910838682 | DIFFIE AND HELLMAN INVENTED PUBLIC KEY CRYPTOGRAPHY IN NINETEEN SEVENTY SIX CHANGING EVERYTHING | vic | vic | substitution | {
"type": "keyword",
"value": "HOLLOW"
} | advanced | en | 147 | 147 | cipher_museum | 2.0 | public | null | null |
adfgvx-v2-0130 | FXAFAGADXAFDGVAGAAAAXFVFFFGD | FXAFAGADXAFDGVAGAAAAXFVFFFGD | STORM THE BREACH | adfgvx | adfgvx | fractionation | {
"polybius": "LIBERTY",
"columnar": "FREEDOM"
} | advanced | en | 28 | 28 | cipher_museum | 2.0 | public | null | null |
kryha-v3-0272 | BBQMXEJGCIVVOFOYVZMFVSPHSWAKHRHXJCQHWGWRGCMANUIWRVUYWCTWAVTMBRTHLAAGXBLDTJ | BBQMXEJGCIVVOFOYVZMFVSPHSWAKHRHXJCQHWGWRGCMANUIWRVUYWCTWAVTMBRTHLAAGXBLDTJ | GENERAL PATTON LED THE THIRD ARMY IN A DARING SWEEP ACROSS FRANCE FOLLOWING THE BREAKOUT | kryha | kryha | machine | {
"type": "keyword",
"value": "PRAGUE"
} | expert | en | 74 | 74 | cipher_museum | 2.0 | public | null | null |
kl7-v2-0460 | AZDLHKVJWZGHFUSSSMLMACRICBSKWTDUOQQHMIXXXZMURBIKKYBBNTWGQIONXMDCLRZMYVLWFLJCWPAKE | AZDLHKVJWZGHFUSSSMLMACRICBSKWTDUOQQHMIXXXZMURBIKKYBBNTWGQIONXMDCLRZMYVLWFLJCWPAKE | THOSE WHO CANNOT REMEMBER THE PAST ARE CONDEMNED TO REPEAT IT AS PHILOSOPHER SANTAYANA OBSERVED | kl7 | kl7 | machine | {
"type": "seed",
"value": "ALLIANCE"
} | expert | en | 81 | 81 | cipher_museum | 2.0 | public | null | null |
four-square-v2-0187 | CTURQSDERRQSFCQCMRQBOYBPBHIMENYVATELFRKEBHIMENDPQTIUCHFLATAKBUPX | CTURQSDERRQSFCQCMRQBOYBPBHIMENYVATELFRKEBHIMENDPQTIUCHFLATAKBUPX | IT WAS THE BEST OF TIMES IT WAS AN AGE OF WISDOM AND AN AGE OF UTTER FOOLISHNESS | four_square | four_square | polygraphic | {
"key1": "LIBERTY",
"key2": "FREEDOM"
} | advanced | en | 64 | 64 | cipher_museum | 2.0 | public | null | null |
columnar-transposition-v2-1007 | EEIVYEAENALOEDSEYSNAIRRTARSEAAVRONAVHNRNLWDNNOTURHUNBNNRGDCFVERSSEASABONTTOXNNNEOLOTEUUETLONDEKWREILVEOBTSSERFDBRNBDLEUNCEGPOIDIOUIENOIREEGLSLMNFESHCFITTDNSUMORNMPIARURDEOI | EEIVYEAENALOEDSEYSNAIRRTARSEAAVRONAVHNRNLWDNNOTURHUNBNNRGDCFVERSSEASABONTTOXNNNEOLOTEUUETLONDEKWREILVEOBTSSERFDBRNBDLEUNCEGPOIDIOUIENOIREEGLSLMNFESHCFITTDNSUMORNMPIARURDEOI | THE GREAT CIPHER OF LOUIS XIV INVENTED BY ANTOINE AND BONAVENTURE ROSSIGNOL USED A NOMENCLATOR OF OVER FIVE HUNDRED NUMBERS REPRESENTING SYLLABLES WORDS AND NULLS AND REMAINED UNBROKEN FOR TWO CENTURIES | columnar_transposition | columnar_transposition | transposition | {
"type": "keyword",
"value": "JUSTICE"
} | intermediate | en | 172 | 172 | cipher_museum | 2.0 | public | null | null |
hill-v2-0432 | IHAWGTDMOZILUCEKAVGGOQSNTRXPJYOJANPFMMRVDBQZPDTTSXKBUOQHKPAIEQSMNVXPFRPLPFKJ | IHAWGTDMOZILUCEKAVGGOQSNTRXPJYOJANPFMMRVDBQZPDTTSXKBUOQHKPAIEQSMNVXPFRPLPFKJ | ARMY OF THE POTOMAC CROSSES THE RAPPAHANNOCK TONIGHT ABSOLUTE SILENCE IS IMPERATIVE NOW | hill | hill | polygraphic | {
"a": 9,
"b": 2,
"c": 7,
"d": 5
} | advanced | en | 76 | 76 | cipher_museum | 2.0 | public | null | null |
chaocipher-v3-0049 | XBDJAIYZONXVBMLERPKBTVSWMDOIQSSZITTQNDWHTZMSOTOOODCACDDCPHKLVRCICVOXDZG | XBDJAIYZONXVBMLERPKBTVSWMDOIQSSZITTQNDWHTZMSOTOOODCACDDCPHKLVRCICVOXDZG | IT WAS A BRIGHT COLD DAY IN APRIL AND THE CLOCKS WERE STRIKING THIRTEEN ACROSS THE CITY | chaocipher | chaocipher | machine | {
"type": "keyword",
"value": "PALACE"
} | advanced | en | 71 | 71 | cipher_museum | 2.0 | public | null | null |
geheimschreiber-048 | NHBZADXHHWBGDWLRPFFBNQVJFXVQDKZRZRDBYXEDEAWESAGSMQCBOGIE | NHBZADXHHWBGDWLRPFFBNQVJFXVQDKZRZRDBYXEDEAWESAGSMQCBOGIE | IF YOU KNOW BOTH YOURSELF AND YOUR ENEMY YOU NEED NOT FEAR THE RESULT | geheimschreiber | geheimschreiber | machine | {
"type": "seed",
"value": "STURGEON"
} | expert | en | 56 | 56 | cipher_museum | 0.2 | public | null | null |
monoalphabetic-v3-1038 | RBO HWJBWRRWJ LPKEOSR IPKTABR RKAORBOP RBO APOWROQR QSCOJRCMCS HCJDQ KM RBO RVOJRCORB SOJRTPY CJ W PWSO RK ITCGD RBO WRKHCS IKHI IOMKPO JWZC AOPHWJY SKTGD DK QK RBO OMMKPR SBWJAOD RBO VKPGD MKPOUOP | RBO HWJBWRRWJ LPKEOSR IPKTABR RKAORBOP RBO APOWROQR QSCOJRCMCS HCJDQ KM RBO RVOJRCORB SOJRTPY CJ W PWSO RK ITCGD RBO WRKHCS IKHI IOMKPO JWZC AOPHWJY SKTGD DK QK RBO OMMKPR SBWJAOD RBO VKPGD MKPOUOP | THE MANHATTAN PROJECT BROUGHT TOGETHER THE GREATEST SCIENTIFIC MINDS OF THE TWENTIETH CENTURY IN A RACE TO BUILD THE ATOMIC BOMB BEFORE NAZI GERMANY COULD DO SO THE EFFORT CHANGED THE WORLD FOREVER | monoalphabetic | monoalphabetic | substitution | {
"type": "keyword",
"value": "WISDOM"
} | beginner | en | 165 | 197 | cipher_museum | 2.0 | public | null | null |
m209-v3-0054 | LXXNOVDLUURYRZBAMLCMGXPJJUBKLUKROXOZYGWUVJXRLYPOYRZSLPANOPKUUQWEKDTT | LXXNOVDLUURYRZBAMLCMGXPJJUBKLUKROXOZYGWUVJXRLYPOYRZSLPANOPKUUQWEKDTT | THE ONLY THING NECESSARY FOR THE TRIUMPH OF EVIL IS FOR GOOD MEN TO DO NOTHING AT ALL | m209 | m209 | machine | {
"type": "seed",
"value": "ARMY"
} | expert | en | 68 | 68 | cipher_museum | 2.0 | public | null | null |
nihilist-v3-0286 | 97 46 59 35 25 64 37 70 45 44 64 58 79 63 26 86 38 46 | 97 46 59 35 25 64 37 70 45 44 64 58 79 63 26 86 38 46 | THE ORACLE HAS SPOKEN | nihilist | nihilist | fractionation | {
"polybius": "NARODNAYA",
"keyword": "VOLYA"
} | advanced | en | 36 | 53 | cipher_museum | 2.0 | public | null | null |
lorenz-v2-0002 | CARTHAGEMUSTBEDESTROYED | CARTHAGEMUSTBEDESTROYED | CARTHAGE MUST BE DESTROYED | lorenz | lorenz | machine | {
"type": "seed",
"value": "TUNNY"
} | expert | en | 23 | 23 | cipher_museum | 2.0 | public | null | null |
kryha-v3-0242 | UPKIXXRMJBKOWKKYD | UPKIXXRMJBKOWKKYD | OLD IRONSIDES HOLDS | kryha | kryha | machine | {
"type": "keyword",
"value": "PRAGUE"
} | expert | en | 17 | 17 | cipher_museum | 2.0 | public | null | null |
cda-0001923 | AUDDW MKUKX NPEOM GUMWK MDJDR GEBNS LFHLB WOGQE | AUDDW MKUKX NPEOM GUMWK MDJDR GEBNS LFHLB WOGQE | ATBASH ENCODES BY REVERSING THE ALPHABET NEVER | trithemius | trithemius | null | {} | medium | en | 40 | 40 | synthetic_educational | null | null | [
"progressive_shift_detection",
"frequency_analysis"
] | Trithemius: progressive Caesar (shift = letter position); no key needed. |
alberti-disk-v3-0822 | TMPCLTLVQDRMEUDEAZVIATVEZFIMBAGFYRBYJQRKYKVLDIWPFWPWERWLTMTONTFOSTHALTZSTMTONPHYNULCIYAYDZTHBNLDLOESYQVCNCVFAUGUODOSAESMGEWNVSWLPXFYDRIYTQGBAQEHHSHQLCVRKUIXGQSEO | TMPCLTLVQDRMEUDEAZVIATVEZFIMBAGFYRBYJQRKYKVLDIWPFWPWERWLTMTONTFOSTHALTZSTMTONPHYNULCIYAYDZTHBNLDLOESYQVCNCVFAUGUODOSAESMGEWNVSWLPXFYDRIYTQGBAQEHHSHQLCVRKUIXGQSEO | 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 | alberti_disk | alberti_disk | disk | {
"type": "integer",
"value": 17
} | expert | en | 161 | 161 | cipher_museum | 2.0 | public | null | null |
bazeries-v2-0218 | MQJXOOBGBIJBQJXHJJAEJPYOYEETPBPKJPOBMPVYPPETRTYAHPIYWGJMIBAYYIYNBFXGPOYIRBIJPA | MQJXOOBGBIJBQJXHJJAEJPYOYEETPBPKJPOBMPVYPPETRTYAHPIYWGJMIBAYYIYNBFXGPOYIRBIJPA | YOUR MISSION IF YOU CHOOSE TO ACCEPT IT IS TO EXTRACT THE AGENT FROM BEHIND ENEMY LINES TONIGHT | bazeries | bazeries | transposition | {
"type": "integer",
"value": 23
} | advanced | en | 78 | 78 | cipher_museum | 2.0 | public | null | null |
beaufort-v2-0405 | AMENXUQTFNBDJ | AMENXUQTFNBDJ | HONOR ABOVE ALL | beaufort | beaufort | polyalphabetic | {
"type": "keyword",
"value": "HARBOUR"
} | intermediate | en | 13 | 13 | cipher_museum | 2.0 | public | null | null |
affine-vh-0013 | NLCUUCX WU ZRC VIZWAV ORAUC MAX WU ZRC LAPX ZRC FCAFLC RC SRAUC HAP RWU WVRCPWZIVSC | NLCUUCX WU ZRC VIZWAV ORAUC MAX WU ZRC LAPX ZRC FCAFLC RC SRAUC HAP RWU WVRCPWZIVSC | BLESSED IS THE NATION WHOSE GOD IS THE LORD THE PEOPLE HE CHOSE FOR HIS INHERITANCE | affine | affine | substitution | {
"a": 5,
"b": 8
} | beginner | en | 68 | 83 | cipher_museum | 2.0 | public | null | null |
great-cipher-v2-0065 | 155 128 174 100 118 141 108 129 171 166 150 173 182 102 151 171 173 152 113 110 150 133 109 113 106 150 127 180 108 140 178 108 177 129 178 181 138 175 167 110 118 166 128 174 152 167 110 136 151 161 141 166 142 164 143 | 155 128 174 100 118 141 108 129 171 166 150 173 182 102 151 171 173 152 113 110 150 133 109 113 106 150 127 180 108 140 178 108 177 129 178 181 138 175 167 110 118 166 128 174 152 167 110 136 151 161 141 166 142 164 143 | I CAN DO ALL THINGS THROUGH CHRIST WHICH STRENGTHENETH ME IN EVERY TRIAL AND TRIBULATION | great_cipher | great_cipher | nomenclator | {
"type": "seed",
"value": "VERSAILLES"
} | expert | en | 165 | 219 | cipher_museum | 2.0 | public | null | null |
diana-104 | YXLVAEJIYJSTZEPQIRJQBULKYCPVAJKIKTQYCVMOXNARHVWECXHPCGOQL | YXLVAEJIYJSTZEPQIRJQBULKYCPVAJKIKTQYCVMOXNARHVWECXHPCGOQL | ELEMENTARY MY DEAR WATSON THE GAME IS AFOOT AND THE CRIMINAL IS CLOSE | diana | diana | polyalphabetic | {
"type": "keyword",
"value": "CIPHER"
} | intermediate | en | 57 | 57 | cipher_museum | 0.2 | public | null | null |
rot13-v2-0042 | GUR PBHEFR BS GEHR YBIR ARIRE QVQ EHA FZBBGU GUEBHTU NTRF | GUR PBHEFR BS GEHR YBIR ARIRE QVQ EHA FZBBGU GUEBHTU NTRF | THE COURSE OF TRUE LOVE NEVER DID RUN SMOOTH THROUGH AGES | rot13 | rot13 | substitution | {
"type": "none",
"value": null
} | beginner | en | 47 | 57 | cipher_museum | 2.0 | public | null | null |
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