在計算機加密算法前，各種人工密碼，機械密碼層出不窮，讓數學天才們有了用武之地。

來源: voiceofme 於 2026-01-03 08:51:27 [博客] [舊帖] [給我悄悄話] 本文已被閱讀：次

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