id stringlengths 7 52 | text stringlengths 6 2.11k | ciphertext stringlengths 6 2.11k | plaintext stringlengths 6 282 | label stringclasses 81
values | cipher stringclasses 81
values | cipher_family stringclasses 13
values | key unknown | difficulty stringclasses 7
values | language stringclasses 8
values | text_length int64 6 1.09k | length int64 6 1.28k | source stringclasses 2
values | dataset_version stringclasses 2
values | split stringclasses 1
value | attack_methods listlengths 0 3 ⌀ | educational_note stringclasses 32
values |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
fialka-v3-0356 | AIYEYMZPDWNLCPLQK | AIYEYMZPDWNLCPLQK | THE RAILWAY ARRIVES | fialka | fialka | machine | {
"type": "seed",
"value": "SPUTNIK"
} | expert | en | 17 | 17 | cipher_museum | 2.0 | public | null | null |
cda-0020797 | 844 805 856 812 853 863 802 803 834 814 999 812 864 826 811 814 839 806 812 999 808 844 836 814 856 999 805 812 815 843 851 814 999 807 842 841 815 826 811 814 839 808 814 999 813 839 858 852 842 846 872 999 836 814 802 854 862 853 813 856 999 860 840 806 814 851 857 801 826 841 858 874 999 825 839 999 800 999 810 826 ... | 844 805 856 812 853 863 802 803 834 814 999 812 864 826 811 814 839 806 812 999 808 844 836 814 856 999 805 812 815 843 851 814 999 807 842 841 815 826 811 814 839 808 814 999 813 839 858 852 842 846 872 999 836 814 802 854 862 853 813 856 999 860 840 806 814 851 857 801 826 841 858 874 999 825 839 999 800 999 810 826 ... | OBSERVABLE EVIDENCE COMES BEFORE CONFIDENCE ENTROPY MEASURES UNCERTAINTY IN A DISTRIBUTION CLASSICAL CIPHERS TEACH WHY MODERN SECURITY MATTERS BEAUFORT IS THE RECIPROCAL OF VIGENERE AND DECRYPTS ITSELF | culper_ring | culper_ring | null | {} | hard | en | 175 | 175 | synthetic_educational | null | null | [
"codebook_frequency",
"number_range_analysis"
] | Culper Ring code: Washington's three-digit codebook numbers (800–999 range). |
cda-0017354 | KXGIA QPQFJ UXNAN GSXVO HFIEO XOOQR OQVJX ZIMPJ FVDHW RMJPJ MZLNA UCMCB JZKTV KPLVI REVMB TDMLR IFKKQ MDKCJ HVOAM FY | KXGIA QPQFJ UXNAN GSXVO HFIEO XOOQR OQVJX ZIMPJ FVDHW RMJPJ MZLNA UCMCB JZKTV KPLVI REVMB TDMLR IFKKQ MDKCJ HVOAM FY | HUMAN READABLE OUTPUT SHOULD SHOW ALL REASONING STEPS POLYBIUS ENCODED LETTERS AS PAIRS OF NUMBERS FROM ONE TO FIVE | vernam | vernam | null | {} | hard | en | 97 | 97 | synthetic_educational | null | null | [
"key_reuse_attack",
"information_theoretic_proof"
] | Vernam cipher: XOR-based stream cipher; with a random key equivalent to OTP. |
affine-v2-1522 | XPAJOC JCIBPKSCJ EB JEGR | XPAJOC JCIBPKSCJ EB JEGR | BRIDGE DESTROYED AT DAWN | affine | affine | substitution | {
"a": 19,
"b": 4
} | beginner | en | 21 | 24 | cipher_museum | 2.0 | public | null | null |
two-square-v2-0356 | CAXEIBXBDVANCESX | CAXEIBXBDVANCESX | CAVALRY ADVANCES | two_square | two_square | polygraphic | {
"key1": "DRAGON",
"key2": "THUNDER"
} | advanced | en | 16 | 16 | cipher_museum | 2.0 | public | null | null |
cda-0012149 | ⟨a25⟩ ⟨a29⟩ ⟨w20⟩ ⟨w20⟩ ⟨a07⟩ ⟨w32⟩ ⟨w26⟩ ⟨w04⟩ ⟨w08⟩ ⟨w04⟩ ⟨w08⟩ ⟨w14⟩ ⟨a29⟩ ⟨w32⟩ ⟨a07⟩ ⟨w20⟩ ⟨w28⟩ ⟨w22⟩ ⟨w20⟩ ⟨a17⟩ ⟨a19⟩ ⟨w10⟩ ⟨a25⟩ ⟨w10⟩ ⟨a19⟩ ⟨w22⟩ ⟨a25⟩ ⟨w10⟩ ⟨w14⟩ ⟨a19⟩ ⟨w20⟩ ⟨w08⟩ ⟨a25⟩ ⟨w20⟩ ⟨w08⟩ ⟨a13⟩ ⟨w10⟩ ⟨a01⟩ ⟨w40⟩ ⟨w08⟩ ⟨a01⟩ ⟨a13⟩ ⟨a29⟩ ⟨w08⟩ ⟨a11⟩ ⟨w20⟩ ⟨a25⟩ ⟨w32⟩ ⟨w14⟩ ⟨w14⟩ ⟨w32⟩ ⟨a13⟩ ⟨a29⟩ ⟨w... | ⟨a25⟩ ⟨a29⟩ ⟨w20⟩ ⟨w20⟩ ⟨a07⟩ ⟨w32⟩ ⟨w26⟩ ⟨w04⟩ ⟨w08⟩ ⟨w04⟩ ⟨w08⟩ ⟨w14⟩ ⟨a29⟩ ⟨w32⟩ ⟨a07⟩ ⟨w20⟩ ⟨w28⟩ ⟨w22⟩ ⟨w20⟩ ⟨a17⟩ ⟨a19⟩ ⟨w10⟩ ⟨a25⟩ ⟨w10⟩ ⟨a19⟩ ⟨w22⟩ ⟨a25⟩ ⟨w10⟩ ⟨w14⟩ ⟨a19⟩ ⟨w20⟩ ⟨w08⟩ ⟨a25⟩ ⟨w20⟩ ⟨w08⟩ ⟨a13⟩ ⟨w10⟩ ⟨a01⟩ ⟨w40⟩ ⟨w08⟩ ⟨a01⟩ ⟨a13⟩ ⟨a29⟩ ⟨w08⟩ ⟨a11⟩ ⟨w20⟩ ⟨a25⟩ ⟨w32⟩ ⟨w14⟩ ⟨w14⟩ ⟨w32⟩ ⟨a13⟩ ⟨a29⟩ ⟨w... | THE ENIGMA MACHINE USED ROTORS TO CREATE A POLYALPHABETIC CIPHER BRUTE FORCE WORKS ONLY WHEN THE KEY SPACE IS SMALL | babington | babington | null | {} | hard | en | 96 | 96 | synthetic_educational | null | null | [
"nomenclator_frequency",
"symbol_mapping"
] | Babington nomenclator: symbol tokens ⟨wNN⟩/⟨aNN⟩ used in the 1586 Babington Plot. |
sigaba-v2-0355 | GUDOAHDJTTJWOSDRWQFHNLMROVSTFOCYMLFQGHWUABDCEEZVNSRTBUEBMJPEGTGZJARYBYUVZTNVJUMZ | GUDOAHDJTTJWOSDRWQFHNLMROVSTFOCYMLFQGHWUABDCEEZVNSRTBUEBMJPEGTGZJARYBYUVZTNVJUMZ | THE AMBASSADOR HAS RECEIVED OUR MOST URGENT DISPATCHES AND AWAITS INSTRUCTIONS FROM LONDON HQ | sigaba | sigaba | machine | {
"type": "seed",
"value": "FREEDOM"
} | expert | en | 80 | 80 | cipher_museum | 2.0 | public | null | null |
cardano-autokey-v2-0311 | NAWZHLWQNONAHBGALFFECJLWSNQZAWZHLWQNONAHBGALPLNQLVTMXFIHQVSNQLVGALJNMPOV | NAWZHLWQNONAHBGALFFECJLWSNQZAWZHLWQNONAHBGALPLNQLVTMXFIHQVSNQLVGALJNMPOV | WE SHALL FIGHT ON THE BEACHES AND WE SHALL FIGHT ON THE LANDING GROUNDS AND IN THE FIELDS | cardano_autokey | cardano_autokey | polyalphabetic | {
"type": "keyword",
"value": "ROME"
} | advanced | en | 72 | 72 | cipher_museum | 2.0 | public | null | null |
wallis-cipher-v3-0016 | 90 81 63 37 61 56 53 24 91 90 55 42 91 90 10 23 54 91 90 45 87 60 52 43 91 | 90 81 63 37 61 56 53 24 91 90 55 42 91 90 10 23 54 91 90 45 87 60 52 43 91 | ARCHERS TO THE WALLS | wallis_cipher | wallis_cipher | nomenclator | {
"type": "seed",
"value": "OXFORD"
} | expert | en | 50 | 74 | cipher_museum | 2.0 | public | null | null |
two-square-v3-0123 | DONTFIREYHEHDRWPEETHIYHIAFPZ | DONTFIREYHEHDRWPEETHIYHIAFPZ | DONT FIRE TILL YOU SEE THE WHITES | two_square | two_square | polygraphic | {
"key1": "LIBERTY",
"key2": "FREEDOM"
} | advanced | en | 28 | 28 | cipher_museum | 2.0 | public | null | null |
cda-0014024 | AAABB ABAAA AABAB AABAB ABAAA AABAA AAAAA ABBAA AAABB AABBB AABAA ABABA ABABA ABABB AAAAA ABBAA ABAAA ABBAA BAABA BAAAA ABBAB AAABB BAABB AAABA AABAA AAABB ABBBA BAABB AAAAB ABABA ABAAA AAABA ABAAB AABAA BABBA AAABA BAAAA BABBA ABBBA BAABA ABBAB AABBA BAAAA AAAAA ABBBA AABBB BABBA ABAAA ABBAA ABBAA ABAAA ABBAA AABAA BA... | AAABB ABAAA AABAB AABAB ABAAA AABAA AAAAA ABBAA AAABB AABBB AABAA ABABA ABABA ABABB AAAAA ABBAA ABAAA ABBAA BAABA BAAAA ABBAB AAABB BAABB AAABA AABAA AAABB ABBBA BAABB AAAAB ABABA ABAAA AAABA ABAAB AABAA BABBA AAABA BAAAA BABBA ABBBA BAABA ABBAB AABBA BAAAA AAAAA ABBBA AABBB BABBA ABAAA ABBAA ABBAA ABAAA ABBAA AABAA BA... | DIFFIE AND HELLMAN INTRODUCED PUBLIC KEY CRYPTOGRAPHY IN NINETEEN SEVENTY SIX THE ARCHITECTURE SHOULD MAKE MISUSE HARDER COLUMNAR TRANSPOSITION READS COLUMNS IN KEY ORDER THE VIGENERE CIPHER USES A REPEATING KEYWORD | bacon_cipher | bacon_cipher | null | {} | hard | en | 925 | 925 | synthetic_educational | null | null | [
"five_bit_decode",
"ab_frequency_analysis"
] | Bacon's biliteral cipher: each letter encoded as 5-bit A/B string. |
four-square-v3-0048 | PTIIOAFSDMEBMPKNCZPESQACMNPZAUNDNTGMVKMNHKUACFUTNVGSGMRHGRDYOSNBQTBNABOSQLNTUTCUHTMLPEMX | PTIIOAFSDMEBMPKNCZPESQACMNPZAUNDNTGMVKMNHKUACFUTNVGSGMRHGRDYOSNBQTBNABOSQLNTUTCUHTMLPEMX | CALL ME ISHMAEL SOME YEARS AGO NEVER MIND HOW LONG PRECISELY I THOUGHT I WOULD SAIL ABOUT AND SEE THE OCEAN | four_square | four_square | polygraphic | {
"key1": "PALACE",
"key2": "BATTLE"
} | advanced | en | 88 | 88 | cipher_museum | 2.0 | public | null | null |
bazeries-v2-0351 | TYCTOITNOMYTTIOYLTMYNHPLYFGIFTLOYLEMHGMMPCCYQNIDNYCNJNIFYJONOGOLGLDTTFTDD | TYCTOITNOMYTTIOYLTMYNHPLYFGIFTLOYLEMHGMMPCCYQNIDNYCNJNIFYJONOGOLGLDTTFTDD | ALEA IACTA EST ET CAESAR RUBICONE TRANSGRESSO BELLUM CIVILE INCIPIT PER TOTAM ROMANAM | bazeries | bazeries | transposition | {
"type": "integer",
"value": 37
} | advanced | en | 73 | 73 | cipher_museum | 2.0 | public | null | null |
purple-v2-0097 | ZSTGYNBEDQDCZASCFAGNFDPCZOIGSJVZOLBNQKKFXRNLKZPFXLAYMHOOQBBDQCUJEILRPZHDZFGGSHBFVQTY | ZSTGYNBEDQDCZASCFAGNFDPCZOIGSJVZOLBNQKKFXRNLKZPFXLAYMHOOQBBDQCUJEILRPZHDZFGGSHBFVQTY | VENONA REVEALED THAT NUMEROUS SOVIET AGENTS HAD PENETRATED THE HIGHEST LEVELS OF THE US GOVERNMENT | purple | purple | machine | {
"type": "seed",
"value": "TOKYO"
} | expert | en | 84 | 84 | cipher_museum | 2.0 | public | null | null |
bifid-v2-0265 | UNUTUTCIYVYO | UNUTUTCIYVYO | VENI VIDI VICI | bifid | bifid | fractionation | {
"type": "keyword",
"value": "LIBERTY"
} | advanced | en | 12 | 12 | cipher_museum | 2.0 | public | null | null |
monoalphabetic-479 | SBN VPS LR WVP CQ LR UCSVH CJMLPSVKGN SL SBN QSVSN CS CQ V JVSSNP LR HCRN VKE ENVSB V PLVE NCSBNP SL QVRNSY LP SL PTCK BNKGN CS CQ V QTIDNGS LR CKOTCPY WBCGB GVK LK KL VGGLTKS IN KNAHNGSNE | SBN VPS LR WVP CQ LR UCSVH CJMLPSVKGN SL SBN QSVSN CS CQ V JVSSNP LR HCRN VKE ENVSB V PLVE NCSBNP SL QVRNSY LP SL PTCK BNKGN CS CQ V QTIDNGS LR CKOTCPY WBCGB GVK LK KL VGGLTKS IN KNAHNGSNE | 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 | monoalphabetic | monoalphabetic | substitution | {
"type": "keyword",
"value": "VIGENERE"
} | beginner | en | 148 | 188 | cipher_museum | 0.2 | public | null | null |
noisy-caesar-telegraph-009 | ZH KROG WKHVH WUXWKV WR QH VHOI HYLGHQW WK W DOO PHQ DUH FUHDWHG HTXDO | ZH KROG WKHVH WUXWKV WR QH VHOI HYLGHQW WK W DOO PHQ DUH FUHDWHG HTXDO | WE HOLD THESE TRUTHS TO BE SELF EVIDENT THAT ALL MEN ARE CREATED EQUAL | caesar | caesar | substitution | {
"type": "shift",
"value": 3
} | beginner | en | 56 | 70 | cipher_museum | 0.2 | public | null | null |
trithemius-v2-0050 | GPQG RNMOB PYZP AWVXK HTLOEKE HS TWFL XCLMC CZDECL JYSM C NDXJK SBA JSTJ UQPRE FVZA CFJKIR | GPQG RNMOB PYZP AWVXK HTLOEKE HS TWFL XCLMC CZDECL JYSM C NDXJK SBA JSTJ UQPRE FVZA CFJKIR | GOOD NIGHT GOOD NIGHT PARTING IS SUCH SWEET SORROW THAT I SHALL SAY GOOD NIGHT TILL MORROW | trithemius | trithemius | polyalphabetic | {
"type": "none",
"value": null
} | beginner | en | 74 | 90 | cipher_museum | 2.0 | public | null | null |
four-square-v3-0207 | ODMFALBURMIGIQCITGQY | ODMFALBURMIGIQCITGQY | THE KING DEMANDS FEALTY | four_square | four_square | polygraphic | {
"key1": "TRIUMPH",
"key2": "JUSTICE"
} | advanced | en | 20 | 20 | cipher_museum | 2.0 | public | null | null |
bazeries-v2-0367 | OMYXTRLYIYRXYHDYQYMLVOFYYFNFFYYOOLGSYFGXOTRTNVUYNUVINCCCFNYQTSFNVOXDNFPYMRYOYOTOTSGMNLYDTUTIRPMMCFYRRFTXNCYRTLYHXCYOTOOTRYBITFXHTCTQNTRFLGSLGMYIYVOSNJDYSGYLTJTAF | OMYXTRLYIYRXYHDYQYMLVOFYYFNFFYYOOLGSYFGXOTRTNVUYNUVINCCCFNYQTSFNVOXDNFPYMRYOYOTOTSGMNLYDTUTIRPMMCFYRRFTXNCYRTLYHXCYOTOOTRYBITFXHTCTQNTRFLGSLGMYIYVOSNJDYSGYLTJTAF | YESTERDAY DECEMBER SEVENTH NINETEEN FORTY ONE A DATE WHICH WILL LIVE IN INFAMY THE UNITED STATES OF AMERICA WAS SUDDENLY AND DELIBERATELY ATTACKED BY NAVAL AND AIR FORCES OF THE EMPIRE OF JAPAN | bazeries | bazeries | transposition | {
"type": "integer",
"value": 37
} | advanced | en | 161 | 161 | cipher_museum | 2.0 | public | null | null |
cda-0003230 | VAQRK BS PBVAPVQRAPR ZRNFHERF YRGGRE SERDHRAPL QVFGEVOHGVBA | VAQRK BS PBVAPVQRAPR ZRNFHERF YRGGRE SERDHRAPL QVFGEVOHGVBA | INDEX OF COINCIDENCE MEASURES LETTER FREQUENCY DISTRIBUTION | rot13 | rot13 | null | {
"shift": 13
} | medium | en | 53 | 53 | synthetic_educational | null | null | [
"brute_force_26",
"self_inverse_check"
] | ROT-13 is Caesar with shift 13 — it is its own inverse. |
cda-0020995 | IHXU MWVZ QZSZ LVND NSMN OEOC CLJQ PUTW JCCJ YXAM PMLT VGCD SBMM FAPC UDQ | IHXU MWVZ QZSZ LVND NSMN OEOC CLJQ PUTW JCCJ YXAM PMLT VGCD SBMM FAPC UDQ | THE BIFID CIPHER COMBINES A POLYBIUS SQUARE WITH TRANSPOSITION TODAY | running_key | running_key | null | {} | medium | en | 59 | 59 | synthetic_educational | null | null | [
"index_of_coincidence",
"probable_plaintext"
] | Running-key cipher: Vigenère with a very long key (e.g. a book passage). |
bifid-vg-0065 | RQLKUKRSSOFFDBROCFVLQGHRWUAIFDYIGEVBCTWYUWTODOYCTADLRYUAOVLXDTIXVDPIUEFHD | RQLKUKRSSOFFDBROCFVLQGHRWUAIFDYIGEVBCTWYUWTODOYCTADLRYUAOVLXDTIXVDPIUEFHD | COMMIT YOUR WORKS UNTO THE LORD AND YOUR THOUGHTS SHALL BE ESTABLISHED BY HIS GREAT HAND | bifid | bifid | fractionation | {
"type": "keyword",
"value": "KEYWORD"
} | advanced | en | 73 | 73 | cipher_museum | 2.0 | public | null | null |
nomenclator-v2-0349 | 22 05 14 15 14 01 18 05 22 05 01 12 05 04 20 08 01 20 14 21 13 05 18 15 21 19 19 15 22 09 05 20 01 07 05 14 20 19 08 01 04 16 05 14 05 20 18 01 20 05 04 60 08 09 07 08 05 19 20 12 05 22 05 12 19 62 60 21 19 07 15 22 05 18 14 13 05 14 20 | 22 05 14 15 14 01 18 05 22 05 01 12 05 04 20 08 01 20 14 21 13 05 18 15 21 19 19 15 22 09 05 20 01 07 05 14 20 19 08 01 04 16 05 14 05 20 18 01 20 05 04 60 08 09 07 08 05 19 20 12 05 22 05 12 19 62 60 21 19 07 15 22 05 18 14 13 05 14 20 | VENONA REVEALED THAT NUMEROUS SOVIET AGENTS HAD PENETRATED THE HIGHEST LEVELS OF THE US GOVERNMENT | nomenclator | nomenclator | nomenclator | {
"type": "seed",
"value": "LIBERTY"
} | expert | en | 158 | 236 | cipher_museum | 2.0 | public | null | null |
beaufort-v2-0413 | ZNLNLYNOJXJV | ZNLNLYNOJXJV | IN GOD WE TRUST | beaufort | beaufort | polyalphabetic | {
"type": "keyword",
"value": "HARBOUR"
} | intermediate | en | 12 | 12 | cipher_museum | 2.0 | public | null | null |
geez-monastic-031 | ITCENAOCTKTOMYOCKOEGTKTNJTRHATSOOCPOPNNVTSPMTDMTPOTATUYPN | ITCENAOCTKTOMYOCKOEGTKTNJTRHATSOOCPOPNNVTSPMTDMTPOTATUYPN | WE HOLD THESE TRUTHS TO BE SELF EVIDENT THAT ALL MEN ARE CREATED EQUAL | geez_monastic | geez_monastic | substitution | {
"type": "keyword",
"value": "GEEZ"
} | advanced | en | 57 | 57 | cipher_museum | 0.2 | public | null | null |
bazeries-v2-0485 | RPMSJNTIFYMJXIYUYPEFPMFYFNMSJJOPMYAQQAESJMJAQMJNRPBAQIYIBQIJVYIFQIIJBQFIBYRIJRGIBTYUXQMYOBTYTTIFTYQFRBKYAQJQBPJKJMAQIJBQHGGFQFRYMFIYTYQFYMGFSLY | RPMSJNTIFYMJXIYUYPEFPMFYFNMSJJOPMYAQQAESJMJAQMJNRPBAQIYIBQIJVYIFQIIJBQFIBYRIJRGIBTYUXQMYOBTYTTIFTYQFRBKYAQJQBPJKJMAQIJBQHGGFQFRYMFIYTYQFYMGFSLY | 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 | bazeries | bazeries | transposition | {
"type": "integer",
"value": 41
} | advanced | en | 143 | 143 | cipher_museum | 2.0 | public | null | null |
cda-0021005 | CLAGI AIHDZ EHDZE HGAHG AHDZE HAKEH DIGLI NITKI NDZEH GLOEI HWOLL ACHEE TSAHB EGAHD ZEHCL AGIAI HGAHA KHABE NODAI HMOAS ITKIN SHUSH TKIND IBEHY AZZIE TKINT HANZI ETSAH ASZIH NAAST SOSIW OLLAC HEETH ANZIE THANZ IEDZE HGAHT KINTS AHGAH DZEHD IBEHD ZEH | CLAGI AIHDZ EHDZE HGAHG AHDZE HAKEH DIGLI NITKI NDZEH GLOEI HWOLL ACHEE TSAHB EGAHD ZEHCL AGIAI HGAHA KHABE NODAI HMOAS ITKIN SHUSH TKIND IBEHY AZZIE TKINT HANZI ETSAH ASZIH NAAST SOSIW OLLAC HEETH ANZIE THANZ IEDZE HGAHT KINTS AHGAH DZEHD IBEHD ZEH | PEER REVIEW AND REPRODUCIBILITY MATTER IN RESEARCH SUBSTITUTION CIPHERS MAP EACH LETTER TO A DIFFERENT LETTER KERCKHOFFS PRINCIPLE SAYS THE SYSTEM MUST BE SECURE EVEN IF ENEMY KNOWS ALGORITHM NEVER | navajo_code | navajo_code | null | {} | hard | en | 208 | 208 | synthetic_educational | null | null | [
"codebook_frequency",
"word_list_attack"
] | Navajo Code Talker cipher: Navajo words represent English letters. |
cda-0016201 | 16.5.5 17.4.3 4.6.10 7.1.8 18.4.10 18.1.6 19.2.4 6.2.10 8.2.7 1.2.5 15.2.6 17.4.2 19.2.7 19.3.2 16.2.5 8.6.8 16.5.10 7.2.9 7.2.5 11.3.4 3.1.1 13.3.5 18.1.6 20.3.9 13.2.5 17.5.5 4.1.7 4.4.3 20.5.2 6.6.2 17.1.2 2.6.8 18.3.2 11.3.1 14.3.1 19.6.1 8.6.3 17.5.8 10.2.6 8.2.6 14.4.6 9.5.10 14.1.7 1.6.8 5.2.3 18.6.5 9.2.4 13.4.... | 16.5.5 17.4.3 4.6.10 7.1.8 18.4.10 18.1.6 19.2.4 6.2.10 8.2.7 1.2.5 15.2.6 17.4.2 19.2.7 19.3.2 16.2.5 8.6.8 16.5.10 7.2.9 7.2.5 11.3.4 3.1.1 13.3.5 18.1.6 20.3.9 13.2.5 17.5.5 4.1.7 4.4.3 20.5.2 6.6.2 17.1.2 2.6.8 18.3.2 11.3.1 14.3.1 19.6.1 8.6.3 17.5.8 10.2.6 8.2.6 14.4.6 9.5.10 14.1.7 1.6.8 5.2.3 18.6.5 9.2.4 13.4.... | MODERN ENCRYPTION IS NOT BROKEN BY LETTER FREQUENCY BRUTE FORCE WORKS ONLY WHEN THE KEY SPACE IS SMALL | arnold_andre | arnold_andre | null | {} | hard | en | 85 | 85 | synthetic_educational | null | null | [
"book_cipher_attack",
"triple_index_search"
] | Arnold-André book cipher: coordinates (page.section.word) referencing a shared text. |
jn25-098 | 37191 37189 37186 37199 37186 37197 37196 37199 37191 37190 37196 37187 37194 37106 37185 37186 37182 37191 37189 37189 37182 37103 37186 37183 37186 37186 37195 37188 37199 37186 37182 37191 37193 37106 37186 37105 37182 37188 37188 37186 37199 37182 37191 37186 37185 | 37191 37189 37186 37199 37186 37197 37196 37199 37191 37190 37196 37187 37194 37106 37185 37186 37182 37191 37189 37189 37182 37103 37186 37183 37186 37186 37195 37188 37199 37186 37182 37191 37193 37106 37186 37105 37182 37188 37188 37186 37199 37182 37191 37186 37185 | THE REPORTS OF MY DEATH HAVE BEEN GREATLY EXAGGERATED | jn25 | jn25 | codebook | {
"type": "additive",
"value": "27182"
} | expert | en | 225 | 269 | cipher_museum | 0.2 | public | null | null |
affine-v3-1330 | QKROPCII IHEFF YEMC RK FEG PCIDCQBARO ER CIBEXFAIHYCRB KV PCFAOAKR KP DPKHAXABARO BHC VPCC CZCPQAIC | QKROPCII IHEFF YEMC RK FEG PCIDCQBARO ER CIBEXFAIHYCRB KV PCFAOAKR KP DPKHAXABARO BHC VPCC CZCPQAIC | CONGRESS SHALL MAKE NO LAW RESPECTING AN ESTABLISHMENT OF RELIGION OR PROHIBITING THE FREE EXERCISE | affine | affine | substitution | {
"a": 19,
"b": 4
} | beginner | en | 85 | 99 | cipher_museum | 2.0 | public | null | null |
cda-0020263 | PPEE KYMQ RCBE RBIT EWJG CEJB SKKG NSTG HKPR SSEF EDCJ WMRV KLZI YPOX HPGX GVHL GFUM YLLR TEDX CNQG YXZI PCCP CXIO KMOA IHF | PPEE KYMQ RCBE RBIT EWJG CEJB SKKG NSTG HKPR SSEF EDCJ WMRV KLZI YPOX HPGX GVHL GFUM YLLR TEDX CNQG YXZI PCCP CXIO KMOA IHF | ALAN TURING BROKE ENIGMA WITH CRIBS AND THE BOMBE MACHINE THE AUTOKEY CIPHER EXTENDS THE KEY WITH THE PLAINTEXT ITSELF | running_key | running_key | null | {} | hard | en | 99 | 99 | synthetic_educational | null | null | [
"index_of_coincidence",
"probable_plaintext"
] | Running-key cipher: Vigenère with a very long key (e.g. a book passage). |
purple-v2-0007 | FXZFUYGOXQWCXI | FXZFUYGOXQWCXI | SIGNAL FIRES LIT | purple | purple | machine | {
"type": "seed",
"value": "TOKYO"
} | expert | en | 14 | 14 | cipher_museum | 2.0 | public | null | null |
cda-0018510 | 808 852 872 845 858 842 819 851 800 846 822 873 999 852 812 868 802 853 810 856 999 845 801 857 826 812 839 806 814 999 801 841 811 999 806 800 851 812 815 862 834 999 859 822 824 841 831 826 839 818 999 816 852 814 850 862 814 840 808 873 999 802 841 800 834 873 855 826 856 999 806 802 841 999 851 813 865 813 802 833 ... | 808 852 872 845 858 842 819 851 800 846 822 873 999 852 812 868 802 853 810 856 999 845 801 857 826 812 839 806 814 999 801 841 811 999 806 800 851 812 815 862 834 999 859 822 824 841 831 826 839 818 999 816 852 814 850 862 814 840 808 873 999 802 841 800 834 873 855 826 856 999 806 802 841 999 851 813 865 813 802 833 ... | CRYPTOGRAPHY REWARDS PATIENCE AND CAREFUL THINKING FREQUENCY ANALYSIS CAN REVEAL WEAK CIPHERS | culper_ring | culper_ring | null | {} | hard | en | 82 | 82 | synthetic_educational | null | null | [
"codebook_frequency",
"number_range_analysis"
] | Culper Ring code: Washington's three-digit codebook numbers (800–999 range). |
morse-code-043 | - .... . / --.- ..- .. -.-. -.- / -... .-. --- .-- -. / ..-. --- -..- / .--- ..- -- .--. ... / --- ...- . .-. / - .... . / .-.. .- --.. -.-- / -.. --- --. / -. . .- .-. / - .... . / .-. .. ...- . .-. | - .... . / --.- ..- .. -.-. -.- / -... .-. --- .-- -. / ..-. --- -..- / .--- ..- -- .--. ... / --- ...- . .-. / - .... . / .-.. .- --.. -.-- / -.. --- --. / -. . .- .-. / - .... . / .-. .. ...- . .-. | THE QUICK BROWN FOX JUMPS OVER THE LAZY DOG NEAR THE RIVER | morse_code | morse_code | encoding | {
"type": "none",
"value": null
} | beginner | en | 142 | 199 | cipher_museum | 0.2 | public | null | null |
great-cipher-v3-0071 | 120 133 179 143 172 154 133 108 169 166 163 163 103 102 131 118 141 152 128 174 129 167 151 105 106 122 108 146 154 177 131 170 168 108 142 173 100 141 174 150 123 166 163 141 152 128 178 167 149 161 148 166 123 119 138 163 166 142 173 172 | 120 133 179 143 172 154 133 108 169 166 163 163 103 102 131 118 141 152 128 174 129 167 151 105 106 122 108 146 154 177 131 170 168 108 142 173 100 141 174 150 123 166 163 141 152 128 178 167 149 161 148 166 123 119 138 163 166 142 173 172 | NEWTON SAW THE APPLE FALL AND INTUITED THE SAME FORCE THAT HOLDS THE PLANETS IN THEIR PATHS | great_cipher | great_cipher | nomenclator | {
"type": "seed",
"value": "VERSAILLES"
} | expert | en | 180 | 239 | cipher_museum | 2.0 | public | null | null |
straddling-checkerboard-v2-0357 | 42522022248292264748282825528218437053848567264828022862350922292264310087322230529425222213422069529291621705342522022 | 42522022248292264748282825528218437053848567264828022862350922292264310087322230529425222213422069529291621705342522022 | THE REGIMENT WILL HOLD ITS POSITION UNTIL REINFORCEMENTS ARRIVE FROM THE EASTERN COMMAND POST HERE | straddling_checkerboard | straddling_checkerboard | substitution | {
"type": "top_row",
"value": "RASTONICEL"
} | advanced | en | 119 | 119 | cipher_museum | 2.0 | public | null | null |
kryha-071 | FNVOURZFYYCMF | FNVOURZFYYCMF | CHANGE OF PLANS | kryha | kryha | machine | {
"type": "keyword",
"value": "CIPHER"
} | expert | en | 13 | 13 | cipher_museum | 0.2 | public | null | null |
culper-ring-v3-0081 | 100 998 812 814 811 804 999 998 801 820 817 808 804 803 999 998 803 804 804 815 999 104 100 998 808 813 819 804 811 811 808 806 804 813 802 804 999 998 800 806 804 813 802 824 999 998 815 800 818 818 804 803 999 998 821 808 819 800 811 999 998 818 804 802 817 804 819 818 999 103 100 159 998 818 808 803 804 999 108 998 ... | 100 998 812 814 811 804 999 998 801 820 817 808 804 803 999 998 803 804 804 815 999 104 100 998 808 813 819 804 811 811 808 806 804 813 802 804 999 998 800 806 804 813 802 824 999 998 815 800 818 818 804 803 999 998 821 808 819 800 811 999 998 818 804 802 817 804 819 818 999 103 100 159 998 818 808 803 804 999 108 998 ... | THE MOLE BURIED DEEP IN THE INTELLIGENCE AGENCY PASSED VITAL SECRETS TO THE OTHER SIDE FOR YEARS | culper_ring | culper_ring | codebook | {
"type": "none",
"value": null
} | expert | en | 258 | 343 | cipher_museum | 2.0 | public | null | null |
trifid-v2-0584 | TDMPTEFN+ABBWRQODVOTKYPOUVRTSUICPNDTWIQDTFZMECODYEIYBDOIUHUKDDXKVZDIXEUFKNMGHT | TDMPTEFN+ABBWRQODVOTKYPOUVRTSUICPNDTWIQDTFZMECODYEIYBDOIUHUKDDXKVZDIXEUFKNMGHT | THE HEAVENS DECLARE THE GLORY OF GOD AND THE FIRMAMENT SHOWETH FORTH HIS HANDIWORK EACH NIGHT | trifid | trifid | fractionation | {
"type": "keyword",
"value": "JUSTICE"
} | advanced | en | 78 | 78 | cipher_museum | 2.0 | public | null | null |
wheatstone-v3-0039 | QHRRWKRNYFRIQLJIAYNFO | QHRRWKRNYFRIQLJIAYNFO | THE EXPERIMENT CONFIRMS | wheatstone | wheatstone | polygraphic | {
"type": "keyword",
"value": "TELEGRAPHY"
} | advanced | en | 21 | 21 | cipher_museum | 2.0 | public | null | null |
commercial-code-v3-0045 | ZUZUZ XAZUZ ZAZUZ GAZUZ BAZUZ QAZUZ XUZUZ ZUZUZ TAZUZ SAZUZ DEZUZ GAZUZ WAZUZ XUZUZ ZUZUZ ZAZUZ WAZUZ BAZUZ RAZUZ XAZUZ HAZUZ SAZUZ WAZUZ QAZUZ XAZUZ XUZUZ | ZUZUZ XAZUZ ZAZUZ GAZUZ BAZUZ QAZUZ XUZUZ ZUZUZ TAZUZ SAZUZ DEZUZ GAZUZ WAZUZ XUZUZ ZUZUZ ZAZUZ WAZUZ BAZUZ RAZUZ XAZUZ HAZUZ SAZUZ WAZUZ QAZUZ XAZUZ XUZUZ | STEAM POWER TRANSFORMS | commercial_code | commercial_code | codebook | {
"type": "none",
"value": null
} | expert | en | 130 | 155 | cipher_museum | 2.0 | public | null | null |
columnar-transposition-122 | EEFOTECLNA | EEFOTECLNA | FLEE AT ONCE | columnar_transposition | columnar_transposition | transposition | {
"type": "keyword",
"value": "MUSEUM"
} | intermediate | en | 10 | 10 | cipher_museum | 0.2 | public | null | null |
kl7-095 | FSIETWGPHTMHVHAKSCJJKKLEMLIWPPNGDCOSRFNYDO | FSIETWGPHTMHVHAKSCJJKKLEMLIWPPNGDCOSRFNYDO | IN WAR THE MORAL IS TO THE PHYSICAL AS THREE IS TO ONE | kl7 | kl7 | machine | {
"type": "seed",
"value": "CIPHER"
} | expert | en | 42 | 42 | cipher_museum | 0.2 | public | null | null |
adfgx-v3-0224 | AGAGXADFFFFFDGGFGDGGDAXFAGFDAFAXGA | AGAGXADFFFFFDGGFGDGGDAXFAGFDAFAXGA | OLD IRONSIDES HOLDS | adfgx | adfgx | fractionation | {
"polybius": "TRIUMPH",
"columnar": "JUSTICE"
} | advanced | en | 34 | 34 | cipher_museum | 2.0 | public | null | null |
confederate-vigenere-v3-0535 | OPGCAFAVHZOKXK | OPGCAFAVHZOKXK | THE SIEGE BEGINS | confederate_vigenere | confederate_vigenere | polyalphabetic | {
"type": "keyword",
"value": "VICKSBURG"
} | intermediate | en | 14 | 14 | cipher_museum | 2.0 | public | null | null |
nomenclator-v2-0281 | 16 01 20 09 05 14 03 05 02 18 09 14 07 19 22 09 03 20 15 18 25 | 16 01 20 09 05 14 03 05 02 18 09 14 07 19 22 09 03 20 15 18 25 | PATIENCE BRINGS VICTORY | nomenclator | nomenclator | nomenclator | {
"type": "seed",
"value": "LIBERTY"
} | expert | en | 42 | 62 | cipher_museum | 2.0 | public | null | null |
two-square-v3-0090 | TETRPKMLELPMHLIGLHUKITLEQGGECZPARKDLZBUGEALLOBRTOLNOSKOURTBWCKRLHLINZKTADWLQRYIEXSPZEAPMNGHLSKCKINULMLIONSHBHMUAIULUATIONSHBDLILSEUGCUOUQDEHADUNHBLPMEPHULDARLLLENSTSX | TETRPKMLELPMHLIGLHUKITLEQGGECZPARKDLZBUGEALLOBRTOLNOSKOURTBWCKRLHLINZKTADWLQRYIEXSPZEAPMNGHLSKCKINULMLIONSHBHMUAIULUATIONSHBDLILSEUGCUOUQDEHADUNHBLPMEPHULDARLLLENSTSX | ULTRA INTELLIGENCE FROM BLETCHLEY PARK GAVE THE ALLIES AN ENORMOUS ADVANTAGE IN WORLD WAR TWO BY REVEALING GERMAN INTENTIONS BEFORE OPERATIONS BEGAN BUT THE SOURCE HAD TO BE PROTECTED AT ALL COSTS | two_square | two_square | polygraphic | {
"key1": "PALACE",
"key2": "BATTLE"
} | advanced | en | 166 | 166 | cipher_museum | 2.0 | public | null | null |
bifid-140 | AUMOQUMEACZTEAL | AUMOQUMEACZTEAL | EVACUATE THE BASE | bifid | bifid | fractionation | {
"type": "keyword",
"value": "MUSEUM"
} | advanced | en | 15 | 15 | cipher_museum | 0.2 | public | null | null |
vigenere-320 | MVWLHFJBENDMIXVIQ | MVWLHFJBENDMIXVIQ | CRYPTOGRAPHY RULES | vigenere | vigenere | polyalphabetic | {
"type": "keyword",
"value": "KEYWORD"
} | intermediate | en | 17 | 17 | cipher_museum | 0.2 | public | null | null |
cda-0013823 | 4 76 52 33 34 81 48 15 87 58 41 63 91 93 26 99 59 50 81 76 60 67 3 76 80 23 99 67 41 39 22 68 68 23 58 46 58 22 36 14 48 15 35 41 | 4 76 52 33 34 81 48 15 87 58 41 63 91 93 26 99 59 50 81 76 60 67 3 76 80 23 99 67 41 39 22 68 68 23 58 46 58 22 36 14 48 15 35 41 | MODERN ENCRYPTION IS NOT BROKEN BY LETTER FREQUENCY | homophonic | homophonic | null | {} | medium | en | 44 | 44 | synthetic_educational | null | null | [
"frequency_analysis",
"multiple_ciphertext_attack"
] | Homophonic substitution: each letter maps to multiple possible numbers. |
running-key-v2-0018 | FKUZLOMWITQSP | FKUZLOMWITQSP | AWAIT MY SIGNAL | running_key | running_key | polyalphabetic | {
"type": "text",
"value": "Gettysburg Address opening"
} | intermediate | en | 13 | 13 | cipher_museum | 2.0 | public | null | null |
scytale-v3-0376 | GPEIINARLTKEADRNGCALHONTTDASRNOEUETHADWOCWBTROERAESEIRXANTMRESFNEXLLHYIPFOGAX | GPEIINARLTKEADRNGCALHONTTDASRNOEUETHADWOCWBTROERAESEIRXANTMRESFNEXLLHYIPFOGAX | GENERAL PATTON LED THE THIRD ARMY IN A DARING SWEEP ACROSS FRANCE FOLLOWING THE BREAKOUT | scytale | scytale | transposition | {
"type": "integer",
"value": 11
} | intermediate | en | 77 | 77 | cipher_museum | 2.0 | public | null | null |
four-square-v2-0023 | NIMSPOHNSRFNFUGFMU | NIMSPOHNSRFNFUGFMU | LOOSE LIPS SINK SHIPS | four_square | four_square | polygraphic | {
"key1": "PALACE",
"key2": "BATTLE"
} | advanced | en | 18 | 18 | cipher_museum | 2.0 | public | null | null |
adfgx-238 | FGGAAXXAAFXXXDDFFXXDFGXAAADFADDX | FGGAAXXAAFXXXDDFFXXDFGXAAADFADDX | ALL IS LOST RETREAT | adfgx | adfgx | fractionation | {
"polybius": "KEYWORD",
"columnar": "TRAFIC"
} | advanced | en | 32 | 32 | cipher_museum | 0.2 | public | null | null |
cda-0011647 | CMCVW NIHTL SATRF HJVSV BRDVK NDFTQ WJIBZ RDJYN HIUIK | CMCVW NIHTL SATRF HJVSV BRDVK NDFTQ WJIBZ RDJYN HIUIK | CLASSICAL CIPHERS TEACH WHY MODERN SECURITY MATTERS | trithemius | trithemius | null | {} | medium | en | 45 | 45 | synthetic_educational | null | null | [] | |
straddling-checkerboard-129 | 67270702876288502142970942986022 | 67270702876288502142970942986022 | SUPPLY LINE COMPROMISED | straddling_checkerboard | straddling_checkerboard | substitution | {
"type": "top_row",
"value": "EATONSIRE"
} | advanced | en | 32 | 32 | cipher_museum | 0.2 | public | null | null |
stager-route-v2-0126 | WLISOENLCOAPRNRGLELFLECFEODTRNMEIIPFITEETOENOEOSIEQOHEMNAUSIBSRREOFEVUSNHNRRODFHETSRMFEJSTIICETREEIERNTAAENODLIUUSEADTHPEEAEMCTSRCIEMSTLNHGTYSEDWHEMFTTETATORTUOPNETRUBIDRYOOPEESBOX | WLISOENLCOAPRNRGLELFLECFEODTRNMEIIPFITEETOENOEOSIEQOHEMNAUSIBSRREOFEVUSNHNRRODFHETSRMFEJSTIICETREEIERNTAAENODLIUUSEADTHPEEAEMCTSRCIEMSTLNHGTYSEDWHEMFTTETATORTUOPNETRUBIDRYOOPEESBOX | 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 | stager_route | stager_route | transposition | {
"type": "integer",
"value": 9
} | expert | en | 180 | 180 | cipher_museum | 2.0 | public | null | null |
cda-0019916 | 6.4.4 11.2.6 3.2.5 1.6.9 11.6.1 13.5.5 7.5.1 13.3.5 17.3.6 7.4.7 15.5.4 2.6.3 8.2.7 18.6.1 6.1.7 11.2.9 17.3.2 17.2.3 7.5.8 3.2.8 16.5.3 20.6.6 16.2.5 2.1.7 8.4.5 10.5.6 15.2.9 6.4.7 13.6.4 1.3.7 6.6.9 9.6.10 10.5.2 10.5.1 9.6.7 14.1.3 13.6.8 13.2.10 11.4.2 13.6.7 6.4.1 5.3.1 9.4.1 4.2.5 10.3.8 7.3.6 20.6.10 13.1.4 15.... | 6.4.4 11.2.6 3.2.5 1.6.9 11.6.1 13.5.5 7.5.1 13.3.5 17.3.6 7.4.7 15.5.4 2.6.3 8.2.7 18.6.1 6.1.7 11.2.9 17.3.2 17.2.3 7.5.8 3.2.8 16.5.3 20.6.6 16.2.5 2.1.7 8.4.5 10.5.6 15.2.9 6.4.7 13.6.4 1.3.7 6.6.9 9.6.10 10.5.2 10.5.1 9.6.7 14.1.3 13.6.8 13.2.10 11.4.2 13.6.7 6.4.1 5.3.1 9.4.1 4.2.5 10.3.8 7.3.6 20.6.10 13.1.4 15.... | A SCYTALE IS A ROD USED BY SPARTANS TO ENCRYPT MESSAGES HUMAN READABLE OUTPUT SHOULD SHOW ALL REASONING STEPS ROUTE CIPHERS READ A GRID IN A PRESCRIBED GEOMETRIC PATTERN | arnold_andre | arnold_andre | null | {} | hard | en | 141 | 141 | synthetic_educational | null | null | [
"book_cipher_attack",
"triple_index_search"
] | Arnold-André book cipher: coordinates (page.section.word) referencing a shared text. |
gronsfeld-244 | ANWMNIEXDBJCVRMWRPQC | ANWMNIEXDBJCVRMWRPQC | RENDEZVOUS AT MIDNIGHT | gronsfeld | gronsfeld | polyalphabetic | {
"type": "numeric",
"value": "99999"
} | intermediate | en | 20 | 20 | cipher_museum | 0.2 | public | null | null |
caesar-v2-1589 | MOJJFS FCHYM BUPY VYYH WON LUNCIHM ZIL NBLYY XUSM IHFS UQUCN LYMOJJFS IL VLYUE NBLIOAB FCHYM | MOJJFS FCHYM BUPY VYYH WON LUNCIHM ZIL NBLYY XUSM IHFS UQUCN LYMOJJFS IL VLYUE NBLIOAB FCHYM | SUPPLY LINES HAVE BEEN CUT RATIONS FOR THREE DAYS ONLY AWAIT RESUPPLY OR BREAK THROUGH LINES | caesar | caesar | substitution | {
"type": "shift",
"value": 20
} | beginner | en | 77 | 92 | cipher_museum | 2.0 | public | null | null |
cda-0009589 | OQGQ WTAYKN DZAYG PBCGP CIZBNDNEGQX AKYQOSNMGWDD | OQGQ WTAYKN DZAYG PBCGP CIZBNDNEGQX AKYQOSNMGWDD | OPEN SOURCE TOOLS ALLOW INDEPENDENT VERIFICATION | trithemius | trithemius | null | {} | medium | en | 43 | 43 | synthetic_educational | null | null | [] | |
m94-v3-0097 | JWCOVZBDSAHBTHNE | JWCOVZBDSAHBTHNE | THE GATES HOLD FIRM | m94 | m94 | machine | {
"type": "seed",
"value": "FREEDOM"
} | expert | en | 16 | 16 | cipher_museum | 2.0 | public | null | null |
geheimschreiber-105 | IXMWRENNXTUDICPPKOSBGHIMZURWRLUJYEVRNQEBEEJMTM | IXMWRENNXTUDICPPKOSBGHIMZURWRLUJYEVRNQEBEEJMTM | I HAVE NOT YET BEGUN TO FIGHT SAID THE CAPTAIN TO THE CREW | geheimschreiber | geheimschreiber | machine | {
"type": "seed",
"value": "CIPHER"
} | expert | en | 46 | 46 | cipher_museum | 0.2 | public | null | null |
cda-0018424 | 25 94 48 33 81 66 24 4 27 40 82 21 88 59 70 23 14 11 48 62 58 76 60 76 34 11 68 26 21 34 48 27 60 23 2 63 76 39 92 82 96 63 94 82 67 22 91 59 87 87 93 63 88 22 3 43 32 67 50 68 59 91 32 25 49 26 81 21 49 63 17 23 34 50 4 1 63 48 1 21 88 39 23 60 25 22 58 60 72 27 52 49 61 61 22 3 33 70 68 30 22 68 25 48 58 | 25 94 48 33 81 66 24 4 27 40 82 21 88 59 70 23 14 11 48 62 58 76 60 76 34 11 68 26 21 34 48 27 60 23 2 63 76 39 92 82 96 63 94 82 67 22 91 59 87 87 93 63 88 22 3 43 32 67 50 68 59 91 32 25 49 26 81 21 49 63 17 23 34 50 4 1 63 48 1 21 88 39 23 60 25 22 58 60 72 27 52 49 61 61 22 3 33 70 68 30 22 68 25 48 58 | THE ENIGMA MACHINE USED ROTORS TO CREATE A POLYALPHABETIC CIPHER SUBSTITUTION CIPHERS MAP EACH LETTER TO A DIFFERENT LETTER | homophonic | homophonic | null | {} | hard | en | 105 | 105 | synthetic_educational | null | null | [
"frequency_analysis",
"multiple_ciphertext_attack"
] | Homophonic substitution: each letter maps to multiple possible numbers. |
atbash-de-009 | WZH TVSVRNMRH ZOOVI NZXSG RHG WZH DRHHVM | WZH TVSVRNMRH ZOOVI NZXSG RHG WZH DRHHVM | DAS GEHEIMNIS ALLER MACHT IST DAS WISSEN | atbash | atbash | substitution | {
"type": "none",
"value": null
} | beginner | de | 34 | 40 | cipher_museum | 0.2 | public | null | null |
red-type-a-v2-0122 | DAFUJOWIVONNJEWRMIBVYHIJFIKAGUURCUEZQULITPMIHVIPUKYACIEMRZABIXSOGAAPELHIUFJQIJIDDOLFPUUYUCCJULIILPOEJOBLJEFHOBVIUTZUOHYXNEBYHIBUHOXEAJVOQFECBYIFEZVTITM | DAFUJOWIVONNJEWRMIBVYHIJFIKAGUURCUEZQULITPMIHVIPUKYACIEMRZABIXSOGAAPELHIUFJQIJIDDOLFPUUYUCCJULIILPOEJOBLJEFHOBVIUTZUOHYXNEBYHIBUHOXEAJVOQFECBYIFEZVTITM | TIMES ARE BAD CHILDREN NO LONGER OBEY THEIR PARENTS AND EVERYONE IS WRITING A BOOK IT SEEMS TO ME THAT THE YOUNG HAVE ALWAYS AND WILL ALWAYS BE AN UNRULY GENERATION FULL OF FOOLISHNESS | red_type_a | red_type_a | machine | {
"type": "keyword",
"value": "SAKURA"
} | advanced | en | 151 | 151 | cipher_museum | 2.0 | public | null | null |
alberti-disk-v2-0320 | VQGAZTGVZHYRSAXBIKNQRTCDQBXWLQTWOIZZVPPODPJXLKCOGGMOPGNHYAUAONZVMEBSRNUTTDKJ | VQGAZTGVZHYRSAXBIKNQRTCDQBXWLQTWOIZZVPPODPJXLKCOGGMOPGNHYAUAONZVMEBSRNUTTDKJ | BLESSED ARE THE PURE IN HEART FOR THEY SHALL SEE GOD AND BLESSED ARE THE PEACEMAKERS AMONG US | alberti_disk | alberti_disk | disk | {
"type": "integer",
"value": 8
} | expert | en | 76 | 76 | cipher_museum | 2.0 | public | null | null |
solitaire-v2-0094 | UIJWULOSJIDUPGPWCJSSFCRRUBPTKWCDFNNNDFTTFTOPISCCNQKVSWKKTNMBITRWEBWRERGIOMWPVTFUFEDQ | UIJWULOSJIDUPGPWCJSSFCRRUBPTKWCDFNNNDFTTFTOPISCCNQKVSWKKTNMBITRWEBWRERGIOMWPVTFUFEDQ | CODED TRANSMISSION INDICATES ENEMY FORCES ASSEMBLING ALONG THE BORDER WITH HEAVY ARTILLERY UNITS | solitaire | solitaire | stream | {
"type": "none",
"value": null
} | expert | en | 84 | 84 | cipher_museum | 2.0 | public | null | null |
running-key-v2-0005 | HOPRDTMEDIDFGZW | HOPRDTMEDIDFGZW | CAVALRY ADVANCES | running_key | running_key | polyalphabetic | {
"type": "text",
"value": "Gettysburg Address opening"
} | intermediate | en | 15 | 15 | cipher_museum | 2.0 | public | null | null |
caesar-v2-1433 | OW SJW KMUZ KLMXX SK VJWSEK SJW ESVW GF SFV GMJ DALLDW DAXW AK JGMFVWV OALZ S KDWWH | OW SJW KMUZ KLMXX SK VJWSEK SJW ESVW GF SFV GMJ DALLDW DAXW AK JGMFVWV OALZ S KDWWH | WE ARE SUCH STUFF AS DREAMS ARE MADE ON AND OUR LITTLE LIFE IS ROUNDED WITH A SLEEP | caesar | caesar | substitution | {
"type": "shift",
"value": 18
} | beginner | en | 66 | 83 | cipher_museum | 2.0 | public | null | null |
cda-0019058 | K r· L L ─ Γ· ¬· ┌ ⌐ ┌ ⌐ r r· Γ· ─ L X· X L Γ ┌· ┘· K ┘· ┌· X K ┘· r ┌· L ⌐ K L ⌐ ┐· ┘· └ ⌒· ⌐ └ ┐· r· ⌐ ¬ L K Γ· r r Γ· ┐· r· L ┌· ⌐ ┌ ┘· Γ L └ r ⌐ ─ r └ ⌐ X X Γ· ⌐· ⌒· ┐· ⌐ K K L ┌· ─ X ¬ X· K Γ· K r ⌐ ─ ⌐ └ X ┘· ¬ L ⌒ ┌· ┘· ─ ¬· K ┌· ⌐ ─ X ┐· ┘· X Γ· K Γ· ┘· ─ r Γ· ┐· r· L ┌· X ┌· L ⌐ ┌· ┌· ⌐ ─ ¬· L └ L K K L ┌· X ⌒... | K r· L L ─ Γ· ¬· ┌ ⌐ ┌ ⌐ r r· Γ· ─ L X· X L Γ ┌· ┘· K ┘· ┌· X K ┘· r ┌· L ⌐ K L ⌐ ┐· ┘· └ ⌒· ⌐ └ ┐· r· ⌐ ¬ L K Γ· r r Γ· ┐· r· L ┌· ⌐ ┌ ┘· Γ L └ r ⌐ ─ r └ ⌐ X X Γ· ⌐· ⌒· ┐· ⌐ K K L ┌· ─ X ¬ X· K Γ· K r ⌐ ─ ⌐ └ X ┘· ¬ L ⌒ ┌· ┘· ─ ¬· K ┌· ⌐ ─ X ┐· ┘· X Γ· K Γ· ┘· ─ r Γ· ┐· r· L ┌· X ┌· L ⌐ ┌· ┌· ⌐ ─ ¬· L └ L K K L ┌· X ⌒... | THE ENIGMA MACHINE USED ROTORS TO CREATE A POLYALPHABETIC CIPHER A MODEL CAN CLASSIFY PATTERNS BUT IT CAN ALSO BE WRONG TRANSPOSITION CIPHERS REARRANGE LETTERS WITHOUT SUBSTITUTION | pigpen | pigpen | null | {} | medium | en | 65 | 65 | synthetic_educational | null | null | [
"symbol_frequency",
"grid_position_decode"
] | Pigpen cipher: letters encoded as positions in tic-tac-toe and X grids. |
cda-0009988 | GUR QRGRPGVIR FGHQVRF CNGGREAF ORSBER ZNXVAT PYNVZF GUR IVTRARER PVCURE HFRF N ERCRNGVAT XRLJBEQ | GUR QRGRPGVIR FGHQVRF CNGGREAF ORSBER ZNXVAT PYNVZF GUR IVTRARER PVCURE HFRF N ERCRNGVAT XRLJBEQ | THE DETECTIVE STUDIES PATTERNS BEFORE MAKING CLAIMS THE VIGENERE CIPHER USES A REPEATING KEYWORD | rot13 | rot13 | null | {
"shift": 13
} | hard | en | 83 | 83 | synthetic_educational | null | null | [] | |
playfair-v3-0515 | UYPNWHBTETIGNMAFEVDWDGHQXYUWQAEOBTPNQZUIWAQLOPSYCQEWDGAPULEOFDANVGCQEWDGFN | UYPNWHBTETIGNMAFEVDWDGHQXYUWQAEOBTPNQZUIWAQLOPSYCQEWDGAPULEOFDANVGCQEWDGFN | TWO ROADS DIVERGED IN A YELLOW WOOD AND SORRY I COULD NOT TRAVEL BOTH AND BE ONE TRAVELER | playfair | playfair | polygraphic | {
"type": "keyword",
"value": "JUSTICE"
} | intermediate | en | 74 | 74 | cipher_museum | 2.0 | public | null | null |
adfgx-v2-0161 | XXAAFFAFDAFFGGDADFGGXAFAXGAAFDDDAAXAFGGDDDGDADFXDADFAXDGADDFDXDGFGAGGGAAAFDADGDXFDAGAGAFAADDDGDADFGGDXAXAXFFAAXAAFXAGAXDAGADDDXXDGGGXFAA | XXAAFFAFDAFFGGDADFGGXAFAXGAAFDDDAAXAFGGDDDGDADFXDADFAXDGADDFDXDGFGAGGGAAAFDADGDXFDAGAGAFAADDDGDADFGGDXAXAXFFAAXAAFXAGAXDAGADDDXXDGGGXFAA | COWARDS DIE MANY TIMES BEFORE THEIR DEATHS THE VALIANT NEVER TASTE DEATH BUT ONCE | adfgx | adfgx | fractionation | {
"polybius": "LIBERTY",
"columnar": "FREEDOM"
} | advanced | en | 136 | 136 | cipher_museum | 2.0 | public | null | null |
polybius-v2-0055 | 11 42 32 54 34 21 33 34 42 44 23 15 42 33 51 24 42 22 24 33 24 11 43 45 42 42 15 33 14 15 42 43 11 44 11 35 35 34 32 11 44 44 34 53 13 34 45 42 44 23 34 45 43 15 44 23 15 52 11 42 24 33 44 23 15 15 11 43 44 24 43 34 51 15 42 | 11 42 32 54 34 21 33 34 42 44 23 15 42 33 51 24 42 22 24 33 24 11 43 45 42 42 15 33 14 15 42 43 11 44 11 35 35 34 32 11 44 44 34 53 13 34 45 42 44 23 34 45 43 15 44 23 15 52 11 42 24 33 44 23 15 15 11 43 44 24 43 34 51 15 42 | ARMY OF NORTHERN VIRGINIA SURRENDERS AT APPOMATTOX COURTHOUSE THE WAR IN THE EAST IS OVER | polybius | polybius | substitution | {
"type": "none",
"value": null
} | beginner | en | 150 | 224 | cipher_museum | 2.0 | public | null | null |
wallis-cipher-v3-0184 | 90 44 79 27 54 81 15 91 90 85 55 91 90 58 72 74 18 66 91 156 90 82 47 45 44 63 20 84 81 11 91 90 55 76 30 54 63 53 91 90 25 66 91 90 88 76 20 40 85 81 18 77 91 90 75 25 66 15 47 73 45 91 90 18 81 41 91 90 58 79 27 47 66 91 90 53 85 72 55 75 63 40 91 90 84 81 91 90 15 44 76 91 124 | 90 44 79 27 54 81 15 91 90 85 55 91 90 58 72 74 18 66 91 156 90 82 47 45 44 63 20 84 81 11 91 90 55 76 30 54 63 53 91 90 25 66 91 90 88 76 20 40 85 81 18 77 91 90 75 25 66 15 47 73 45 91 90 18 81 41 91 90 58 79 27 47 66 91 90 53 85 72 55 75 63 40 91 90 84 81 91 90 15 44 76 91 124 | HUMINT OR HUMAN INTELLIGENCE GATHERING RELIES ON PERSONAL CONTACT AND HUMAN SOURCES IN THE FIELD | wallis_cipher | wallis_cipher | nomenclator | {
"type": "seed",
"value": "ENGLAND"
} | expert | en | 188 | 280 | cipher_museum | 2.0 | public | null | null |
lorenz-v2-0273 | EPLURIBUSUNUM | EPLURIBUSUNUM | E PLURIBUS UNUM | lorenz | lorenz | machine | {
"type": "seed",
"value": "COLOSSUS"
} | expert | en | 13 | 13 | cipher_museum | 2.0 | public | null | null |
wallis-cipher-v3-0061 | 90 81 55 91 90 10 61 56 91 125 90 42 31 91 90 76 33 82 45 87 86 91 90 81 40 54 63 28 37 87 34 91 90 21 33 26 56 91 90 59 89 76 84 54 53 24 91 90 82 56 43 55 63 42 46 54 21 91 90 72 89 49 53 91 90 12 81 14 87 85 56 24 54 91 90 48 81 63 53 28 56 63 43 91 90 33 34 91 90 40 28 85 25 10 54 24 91 | 90 81 55 91 90 10 61 56 91 125 90 42 31 91 90 76 33 82 45 87 86 91 90 81 40 54 63 28 37 87 34 91 90 21 33 26 56 91 90 59 89 76 84 54 53 24 91 90 82 56 43 55 63 42 46 54 21 91 90 72 89 49 53 91 90 12 81 14 87 85 56 24 54 91 90 48 81 63 53 28 56 63 43 91 90 33 34 91 90 40 28 85 25 10 54 24 91 | AT THE BATTLE OF MIDWAY AMERICAN DIVE BOMBERS DESTROYED FOUR JAPANESE CARRIERS IN MINUTES | wallis_cipher | wallis_cipher | nomenclator | {
"type": "seed",
"value": "OXFORD"
} | expert | en | 195 | 291 | cipher_museum | 2.0 | public | null | null |
columnar-transposition-264 | NTOSEUNTRO | NTOSEUNTRO | TRUST NO ONE | columnar_transposition | columnar_transposition | transposition | {
"type": "keyword",
"value": "ENIGMA"
} | intermediate | en | 10 | 10 | cipher_museum | 0.2 | public | null | null |
joseon-yeokhak-v2-0124 | CTBZIQVBMTTQOMVKMLMZQDMLNZWULMKZGXBMLOMZUIVMVQOUIBZINNQKQVLQKIBMABPIBMVMUGXIVHMZLQDQAQWVAIZMKWVKMVBZIBMLIBKITIQAKWVNQZUQVOBPMLMKMXBQWVWXMZIBQWVNWZBQBCLMPIAACKKMMLML | CTBZIQVBMTTQOMVKMLMZQDMLNZWULMKZGXBMLOMZUIVMVQOUIBZINNQKQVLQKIBMABPIBMVMUGXIVHMZLQDQAQWVAIZMKWVKMVBZIBMLIBKITIQAKWVNQZUQVOBPMLMKMXBQWVWXMZIBQWVNWZBQBCLMPIAACKKMMLML | ULTRA INTELLIGENCE DERIVED FROM DECRYPTED GERMAN ENIGMA TRAFFIC INDICATES THAT ENEMY PANZER DIVISIONS ARE CONCENTRATED AT CALAIS CONFIRMING THE DECEPTION OPERATION FORTITUDE HAS SUCCEEDED | joseon_yeokhak | joseon_yeokhak | substitution | {
"type": "keyword",
"value": "SEOUL"
} | beginner | en | 164 | 164 | cipher_museum | 2.0 | public | null | null |
cda-0009941 | MOEEB OABEE DOOBT NXSOO EMCYV SSSWT OAEXE HFDBS MEOEE HTNEE XESES HFHLX RETNC RRIVL LEOTA EIRTS IHNRX FSHYD WSCTE XSASD EXEEM HTNLV EECNN EEDX | MOEEB OABEE DOOBT NXSOO EMCYV SSSWT OAEXE HFDBS MEOEE HTNEE XESES HFHLX RETNC RRIVL LEOTA EIRTS IHNRX FSHYD WSCTE XSASD EXEEM HTNLV EECNN EEDX | THE BEST LESSONS SHOW WHERE THE METHOD FAILS EVERY SYSTEM NEEDS AN HONEST THREAT MODEL OBSERVABLE EVIDENCE COMES BEFORE CONFIDENCE | double_transposition | double_transposition | null | {
"key1": "SECURE",
"key2": "FREEDOM"
} | hard | en | 119 | 119 | synthetic_educational | null | null | [] | |
scytale-v2-0678 | AWAAHHEMRIEGXLOSNMIPATFAEXLRTDASLNSETXXTLAENTAYOSSXXHDGAIIYPNGTXXESECNMSALRAXX | AWAAHHEMRIEGXLOSNMIPATFAEXLRTDASLNSETXXTLAENTAYOSSXXHDGAIIYPNGTXXESECNMSALRAXX | ALL THE WORLDS A STAGE AND EACH MAN IN HIS TIME PLAYS MANY PARTS ON LIFES GREAT STAGE | scytale | scytale | transposition | {
"type": "integer",
"value": 13
} | intermediate | en | 78 | 78 | cipher_museum | 2.0 | public | null | null |
kama-sutra-v3-0206 | WIL DXQIXWWXQ BYCGLOW PYCSJIW WCJLWILY WIL JYLXWLUW UOHLQWHKHO DHQMU CK WIL WTLQWHLWI OLQWSYR HQ X YXOL WC PSHEM WIL XWCDHO PCDP PLKCYL QXVH JLYDXQR OCSEM MC UC WIL LKKCYW OIXQJLM WIL TCYEM KCYLZLY | WIL DXQIXWWXQ BYCGLOW PYCSJIW WCJLWILY WIL JYLXWLUW UOHLQWHKHO DHQMU CK WIL WTLQWHLWI OLQWSYR HQ X YXOL WC PSHEM WIL XWCDHO PCDP PLKCYL QXVH JLYDXQR OCSEM MC UC WIL LKKCYW OIXQJLM WIL TCYEM KCYLZLY | 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 | kama_sutra | kama_sutra | substitution | {
"type": "keyword",
"value": "VATSYANA"
} | intermediate | en | 165 | 197 | cipher_museum | 2.0 | public | null | null |
wheatstone-v3-0052 | GJIJQPJPRIQDRYIQJQHTQPJJGIYPHQJDGTPROHJSDGESNITIGNTURTQLDJORJAGTXNTPRNTPR | GJIJQPJPRIQDRYIQJQHTQPJJGIYPHQJDGTPROHJSDGESNITIGNTURTQLDJORJAGTXNTPRNTPR | DO NOT GO GENTLE INTO THAT GOOD NIGHT OLD AGE SHOULD BURN AND RAVE AT CLOSE OF DAY RAGE RAGE | wheatstone | wheatstone | polygraphic | {
"type": "keyword",
"value": "TELEGRAPHY"
} | advanced | en | 73 | 73 | cipher_museum | 2.0 | public | null | null |
bazeries-v3-0567 | OSMAOAGPNOPLSMLYQACXSWDDTYDRHGSNOTYVVGAMSOAGSFYDYMMHJGHGHAMMOLHESEMPFYGPRGAYIOSEHOGSYEAR | OSMAOAGPNOPLSMLYQACXSWDDTYDRHGSNOTYVVGAMSOAGSFYDYMMHJGHGHAMMOLHESEMPFYGPRGAYIOSEHOGSYEAR | IT IS A TRUTH UNIVERSALLY ACKNOWLEDGED THAT A SINGLE MAN IN POSSESSION OF A FORTUNE MUST BE IN WANT OF A WIFE | bazeries | bazeries | transposition | {
"type": "integer",
"value": 67
} | advanced | en | 88 | 88 | cipher_museum | 2.0 | public | null | null |
venona-pad-reuse-073 | GFLL4UMZNDW4GI6 | GFLL4UMZNDW4GI6 | ENEMY FORCES NEAR | venona_pad_reuse | venona_pad_reuse | stream | {
"type": "keyword",
"value": "CIPHER"
} | expert | en | 15 | 15 | cipher_museum | 0.2 | public | null | null |
solitaire-v3-0290 | XBNZWJIWFQOBGBICKNVMQBUCBJYSQAFJZTIFQQNPOZNYRQFKMTHCTHIOPGLEGNWJPWROUNRIXIBDHUIXLAUON | XBNZWJIWFQOBGBICKNVMQBUCBJYSQAFJZTIFQQNPOZNYRQFKMTHCTHIOPGLEGNWJPWROUNRIXIBDHUIXLAUON | CONGRESS SHALL MAKE NO LAW RESPECTING AN ESTABLISHMENT OF RELIGION OR PROHIBITING THE FREE EXERCISE | solitaire | solitaire | stream | {
"type": "passphrase",
"value": "PONTIFEX"
} | expert | en | 85 | 85 | cipher_museum | 2.0 | public | null | null |
cda-0019664 | chol okedy otol ypchol aiiin shaiin okshy chor shor qokeedy otain choldaiin sheol lkaiin choldaiin chor cheol okain ypchol shal qokeedy chol aiiin qotedy okeedy otedy ctaiin aiiin otain qokeedy dainy cheol kaiiin okain ytaiin raiin okshy okshy okeedy chor okal oror qokedy otain | chol okedy otol ypchol aiiin shaiin okshy chor shor qokeedy otain choldaiin sheol lkaiin choldaiin chor cheol okain ypchol shal qokeedy chol aiiin qotedy okeedy otedy ctaiin aiiin otain qokeedy dainy cheol kaiiin okain ytaiin raiin okshy okshy okeedy chor okal oror qokedy otain | ROUTE CIPHERS READ A GRID IN A PRESCRIBED GEOMETRIC PATTERN FAIL CLOSED IS A POSTURE NOT A SLOGAN THE ONE TIME PAD IS THEORETICALLY UNBREAKABLE IF USED CORRECTLY | voynich_render | voynich_render | null | {} | hard | en | 235 | 235 | synthetic_educational | null | null | [
"statistical_analysis",
"unsolved"
] | Voynich manuscript: undeciphered 15th-century script; pseudo-syllabic output. |
cda-0018017 | south enter could upper range intel troop yield clear leads array incur motor stage seeks heads often unite large daily below enemy turns early stage | south enter could upper range intel troop yield clear leads array incur motor stage seeks heads often unite large daily below enemy turns early stage | SECURITY CLAIMS SHOULD BE TESTED UNDER SCRUTINY A SCYTALE IS A ROD USED BY SPARTANS TO ENCRYPT MESSAGES THE PLAYFAIR CIPHER ENCRYPTS PAIRS OF LETTERS SIMULTANEOUSLY | 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-v3-0446 | VASAEZMPWDTSFSVRZPCVQGNOAEZMP | VASAEZMPWDTSFSVRZPCVQGNOAEZMP | TAXATION WITHOUT REPRESENTATION | confederate_vigenere | confederate_vigenere | polyalphabetic | {
"type": "keyword",
"value": "CAVALRY"
} | intermediate | en | 29 | 29 | cipher_museum | 2.0 | public | null | null |
wallis-cipher-v3-0005 | 90 24 42 49 34 82 91 90 55 61 56 91 90 10 63 25 76 14 54 55 43 91 | 90 24 42 49 34 82 91 90 55 61 56 91 90 10 63 25 76 14 54 55 43 91 | SOUND THE TRUMPETS | wallis_cipher | wallis_cipher | nomenclator | {
"type": "seed",
"value": "OXFORD"
} | expert | en | 44 | 65 | cipher_museum | 2.0 | public | null | null |
cda-0006896 | AVROSLBZOSEPIESVEQIAVSIGLGEJXRDLVHIVIZVDFJQTTIBZMEVMMASSLIOOOCDIVQIEPRGZKRQRUFGTAVWDSSTZHGBPJMQXEQTCZXRGJPQWUFWVVLUVPXPBNIQBQBEIECLBFVQIEGOYEVLZEEXJCJTAMTUCHLQLDNATXYLEXWLFEEHOIGXL | AVROSLBZOSEPIESVEQIAVSIGLGEJXRDLVHIVIZVDFJQTTIBZMEVMMASSLIOOOCDIVQIEPRGZKRQRUFGTAVWDSSTZHGBPJMQXEQTCZXRGJPQWUFWVVLUVPXPBNIQBQBEIECLBFVQIEGOYEVLZEEXJCJTAMTUCHLQLDNATXYLEXWLFEEHOIGXL | THE KASISKI EXAMINATION FINDS REPEATED TRIGRAMS IN CIPHERTEXT OBSERVABLE EVIDENCE COMES BEFORE CONFIDENCE ENTROPY MEASURES UNCERTAINTY IN A DISTRIBUTION POLYALPHABETIC CIPHERS USE MULTIPLE ALPHABET SHIFTS | autokey | autokey | null | {
"primer": "HONEST"
} | hard | en | 180 | 180 | synthetic_educational | null | null | [] | |
cda-0006916 | CEXWA UNSRF AOXOO LTTIA XANRA BTPCI ESNLX SLDXB NTAYC MGES | CEXWA UNSRF AOXOO LTTIA XANRA BTPCI ESNLX SLDXB NTAYC MGES | A MODEL CAN CLASSIFY PATTERNS BUT IT CAN ALSO BE WRONG | double_transposition | double_transposition | null | {
"key1": "CIPHER",
"key2": "PATTERN"
} | medium | en | 49 | 49 | synthetic_educational | null | null | [] | |
fialka-v2-0124 | RQJTQAYZKOSFFGDRTPFQGHQNZZGSPXSKAUMRZIMNULOFZFRJJEJRPDDMOVMKLVNNWPDZBSTOSGGNWIMVNJITFDIDDJNRPVYHUXMYGNFNIDEREFZLSVZLYGPRYQYKTNLTCFWALKCVBTSALXZJVOIQFKSGYHCNPKIJIRHB | RQJTQAYZKOSFFGDRTPFQGHQNZZGSPXSKAUMRZIMNULOFZFRJJEJRPDDMOVMKLVNNWPDZBSTOSGGNWIMVNJITFDIDDJNRPVYHUXMYGNFNIDEREFZLSVZLYGPRYQYKTNLTCFWALKCVBTSALXZJVOIQFKSGYHCNPKIJIRHB | ULTRA INTELLIGENCE DERIVED FROM DECRYPTED GERMAN ENIGMA TRAFFIC INDICATES THAT ENEMY PANZER DIVISIONS ARE CONCENTRATED AT CALAIS CONFIRMING THE DECEPTION OPERATION FORTITUDE HAS SUCCEEDED | fialka | fialka | machine | {
"type": "seed",
"value": "MOSCOW"
} | expert | en | 164 | 164 | cipher_museum | 2.0 | public | null | null |
cda-0006164 | SVDVXNZBBRYY OVDWUIK FUK AXAG LFVWIW ZV I MSQRRFTDK DXNOAO DQIFFPES KZBRWLFRR ZUP DXHBPE DQON UWEYOZBRMD MYKPOJ | SVDVXNZBBRYY OVDWUIK FUK AXAG LFVWIW ZV I MSQRRFTDK DXNOAO DQIFFPES KZBRWLFRR ZUP DXHBPE DQON UWEYOZBRMD MYKPOJ | SUBSTITUTION CIPHERS MAP EACH LETTER TO A DIFFERENT LETTER FRIEDMAN ESTIMATED KEY LENGTH FROM STATISTICS ALWAYS | trithemius | trithemius | null | {} | hard | en | 96 | 96 | synthetic_educational | null | null | [
"progressive_shift_detection",
"frequency_analysis"
] | Trithemius: progressive Caesar (shift = letter position); no key needed. |
diana-v3-0159 | ANWYVYHWHLVUGSBLTUCSXFHMRIOHSCBLEPDMHQPMSSLBKJQYDOCCYAIKHHRZQADPPTBEJSOHRKPWDF | ANWYVYHWHLVUGSBLTUCSXFHMRIOHSCBLEPDMHQPMSSLBKJQYDOCCYAIKHHRZQADPPTBEJSOHRKPWDF | SCIENCE WITHOUT RELIGION IS LAME AND RELIGION WITHOUT SCIENCE IS BLIND SAID ALBERT EINSTEIN | diana | diana | polyalphabetic | {
"type": "keyword",
"value": "SPECIAL"
} | intermediate | en | 78 | 78 | cipher_museum | 2.0 | public | null | null |
lorenz-v2-0394 | VMNIVIDIVICI | VMNIVIDIVICI | VENI VIDI VICI | lorenz | lorenz | machine | {
"type": "seed",
"value": "BLETCHLEY"
} | expert | en | 12 | 12 | cipher_museum | 2.0 | public | null | null |
adfgvx-v2-0267 | AFFAAXADGDAVDDDADDAGAGFDVDVDAVDD | AFFAAXADGDAVDDDADDAGAGFDVDVDAVDD | ABORT AND WITHDRAW | adfgvx | adfgvx | fractionation | {
"polybius": "TRIUMPH",
"columnar": "JUSTICE"
} | advanced | en | 32 | 32 | cipher_museum | 2.0 | public | null | null |
red-type-a-v3-0088 | VABRIAUTXCIJNKIGACNUVXAMGYWFYQVUUCJEXQIRJUSJUEZGACUFAIVRIRUXHURIMDNOVMETRIPULULJIGH | VABRIAUTXCIJNKIGACNUVXAMGYWFYQVUUCJEXQIRJUSJUEZGACUFAIVRIRUXHURIMDNOVMETRIPULULJIGH | DIFFIE AND HELLMAN INVENTED PUBLIC KEY CRYPTOGRAPHY IN NINETEEN SEVENTY SIX CHANGING EVERYTHING | red_type_a | red_type_a | machine | {
"type": "keyword",
"value": "SAKURA"
} | advanced | en | 83 | 83 | cipher_museum | 2.0 | public | null | null |
Subsets and Splits
No community queries yet
The top public SQL queries from the community will appear here once available.