A Modified Feistel Cipher Involving XOR Operation and Modular Arithmetic Inverse of a Key Matrix
Journal Title: International Journal of Advanced Computer Science & Applications - Year 2012, Vol 3, Issue 7
Abstract
In this paper, we have developed a block cipher by modifying the Feistel cipher. In this, the plaintext is taken in the form of a pair of matrices. In one of the relations of encryption the plaintext is multiplied with the key matrix on both the sides. Consequently, we use the modular arithmetic inverse of the key matrix in the process of decryption. The cryptanalysis carried out in this investigation, clearly indicates that the cipher is a strong one, and it cannot be broken by any attack.
Authors and Affiliations
V. Sastry, K. Kumar
Keywords
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