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Based on the analysis of related concepts of the classical Vigenere cipher and Vigenere square, a 3-dimensional Vigenere cube model is proposed in this paper.
分析了经典维吉尼亚密码及维吉尼亚方阵的相关概念，在此基础上提出了一个三维维吉尼亚立方体模型。
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On the side he invented a precursor to the Vigenere cipher, a code so strong it took three centuries to crack.
FORBES: I've got a secret
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