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Cryptologic Codices of Antiquity is a hard crossword puzzle with 15 clues covering . Play it online for free below, or create your own crossword with our free crossword maker.

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Cryptologic Codices of Antiquity
Challenging puzzle for experienced crossword solvers
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Across
  • 1. Square-based numeric code named after a Greek historian, an early grid cipher
  • 2. German polyalphabetic cipher of the 16th century, more tangled than most
  • 3. Ancient Germanic characters sometimes employed for cryptic inscriptions
  • 5. Oceanic theater where Allied cipher machines turned tides in WWII communications
  • 7. Imperial shift cipher famously employed by the Roman dictator
  • 10. Cardan's horizontal cutout tool for revealing hidden text beneath
  • 11. Invented for practical military use, this digraph substitution resists simple frequency analysis
  • 14. Hebrew-derived symmetric substitution cipher reversing alphabets in biblical secrecy
Down
  • 4. Less known variant involving keyed alphabets, akin to homophonic substitution
  • 6. Core mechanical components creating polyalphabetic complexity in electromechanical ciphers
  • 8. Rotor encryption device whose cracked code altered WWII’s cryptographic landscape
  • 9. Polyalphabetic cipher named after a French diplomat, deceptively simple yet historically elusive
  • 12. Transposition cipher that writes messages in grids then scrambles column order
  • 13. Ancient Spartan tool for transposition, wrapping messages on a specific rod
  • 15. Cipher fusing fractionation with transposition in a complex fractionated square
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