密码棒 Scytale
（重定向自Skytale）
在密码学里，密码棒是个可使的传递消息字母顺序改变的工具，由一条加工过、且有夹带消息的皮革绕在一个木棒所组成。在古希腊，文书记载着斯巴达人用此于军事上的消息传递。
密码接受者需使用一个相同尺寸、让他将密码条绕在上面解读的棒子。快速且不容易解读错误的优点，使它在战场上大受欢迎。
但是它很容易就被破解了
Skytale
中文百科
英语百科
Scytale 密码棒
（重定向自Skytale）
In cryptography, a scytale (/ˈskɪtəliː/, rhymes approximately with Italy; also transliterated skytale, Greek σκυτάλη "baton") is a tool used to perform a transposition cipher, consisting of a cylinder with a strip of parchment wound around it on which is written a message. The ancient Greeks, and the Spartans in particular, are said to have used this cipher to communicate during military campaigns.
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