Generation of Rectangular Matrix Key for Hill Cipher Algorithm Using Playfair Cipher

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  • 25 Jun
  • 2021

Generation of Rectangular Matrix Key for Hill Cipher Algorithm Using Playfair Cipher

Hill cipher is a cryptographic algorithm that uses matrix as a key by utilizing modulo operations. The key matrix used is usually made randomly as a square matrix. In this study, a key matrix was created using the Playfair Cipher algorithm as a rectangular matrix. The use of the Playfair Cipher algorithm makes it easy for users to remember key matrices, while remaining safe when distributed. Beside the key matrix security, use of a rectangular key matrix produces a longer and more complicated ciphertext to find the linear equation.

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REFERENSI

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