什麼是 Atbash 密碼？
免費線上 Atbash 密碼與柵欄密碼工具。使用經典密碼演算法加密或解密文字。
為什麼要使用 Atbash 密碼？
- Atbash: full alphabet reversal (A↔Z through M↔N)
- Atbash: optional digit reversal (0↔9)
- Rail Fence: configurable rail count (2-10)
- Rail Fence: visual rail pattern display
- 兩種密碼皆為自反或完全雙向
如何使用 Atbash 密碼 — 逐步教學
1
Select Atbash or Rail Fence mode.
2
For Atbash: type your text and optionally toggle number reversal.
3
For Rail Fence: set the number of rails (2-10) and choose Encrypt or Decrypt.
4
View the rail pattern visualization to understand the transposition.
5
Copy or save the output as needed.
Atbash 密碼適合誰？
- 學習密碼學的學生
- CTF 玩家
- 謎題解謎者
- 密碼學愛好者
Atbash 密碼 — 常見問題
What is Atbash cipher?
Atbash is a substitution cipher where the first letter of the alphabet is replaced with the last (A↔Z), the second with the second-last (B↔Y), and so on. It was originally used with the Hebrew alphabet in ancient texts.
什麼是 Rail Fence 密碼？
The Rail Fence cipher writes your message diagonally across a set number of "rails" (rows), then reads the letters row by row. For example, with 3 rails, the text "HELLO WORLD" follows a zigzag pattern across the three rows.
以現代標準來看，這些密碼安全嗎？
No. Both are classical ciphers that can be broken easily with modern techniques. They are useful for learning cryptography fundamentals, solving puzzles, and understanding historical encryption methods.
準備好使用 Atbash 密碼 了嗎？
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