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てんちしきあんごう 転置式暗号
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Noun
1. transposition cipher​
Wikipedia definition
2. Transposition cipher​In cryptography, a transposition cipher is a method of encryption by which the positions held by units of plaintext (which are commonly characters or groups of characters) are shifted according to a regular system, so that the ciphertext constitutes a permutation of the plaintext. That is, the order of the units is changed. Mathematically a bijective function is used on the characters' positions to encrypt and an inverse function to decrypt. Following are some implementations.
Read “Transposition cipher” on English Wikipedia
Read “転置式暗号” on Japanese Wikipedia
Read “Transposition cipher” on DBpedia

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