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In cryptography, a cipher produced by a composition of a number of substitution and transposition ciphers.
密码学中,由替代密码和置换密码结合使用而构成的一种密码。
youdao
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In cryptography, a cipher produced by a composition of a number of substitution and transposition ciphers.
密码学中,由替代密码和置换密码结合使用而构成的一种密码。
youdao