Pigpen cipher
- 猪圈密码（猪圈密码是一种简单的替代式密码，以格子为基础。可用于其他替代式方法。例子中将字母填入格子）
Pigpen cipher
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abstract:
The pigpen cipher (sometimes referred to as the masonic cipher, Freemason's cipher, Rosicrucian cipher, or Tic-tac-toe cipher)Barker, p. 40Wrixon, p.
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WordNet