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AJ

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A great learning experience. I teach Cryptography in my Institution and this course helped me gain additional insights on the course.

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2020年8月3日

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course design is brilliant. assignment questions are wonderful. peer review , flash quiz amazing.

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Classical Cipher: Transposition

This module studies transposition cipher which, along with substitution cipher, provides a base technique for symmetric ciphers. We define transposition cipher and product cipher and discuss transposition examples in Rail Fence and Permutation Cipher.

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    Sang-Yoon Chang

    Assistant Professor

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