Abstract: Hill cipher's susceptibility to cryptanalysis has rendered it unusable in practice, it still serves an important pedagogical role in both cryptology and linear algebra. Hill cipher requires ...
Abstract: Hill cipher's susceptibility to cryptanalysis has rendered it unusable in practice, it still serves an important pedagogical role in both cryptology and linear algebra. Hill cipher requires ...
[**对合矩阵**](https://en.wikipedia.org/wiki/Involutory_matrix)：如果矩阵本身相乘返回恒等矩阵，则称该矩阵为对合矩阵 ...
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