On Some Cipher Systems and The Knapsack Problem Mardan Ameen Pirdawood Department of Mathematics , Faculty of Sceince and Health, Koya University http://koyauniversity.org Abstract: Cryptography is an art that has been practiced through the centuries. This work focuses on the cryptanalysis of some cipher systems such as the Pigpen Cipher, Francis Bacon cipher, The Caesar Cipher and Letter Frequency Analysis. Also, we introduced a special cipher by using English letters versus emoji’s, in the name Emoji code cipher. Finally, we have studied and analyzed about the knapsack problem. Date: 16/05/2019 Place: Department of Mathematics/ Hall No.1 |
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