A Novel Block Cipher Involving a Key bunch Matrix and a Key-based Permutation and Substitution

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Provided by: SAI Consulting
Topic: Security
Format: PDF
In this paper, the authors have developed a novel block cipher involving a key bunch matrix supported by a key-based permutation and a key-based substitution. In this paper, the decryption key bunch matrix is obtained by using the given encryption key bunch matrix and the concept of multiplicative inverse. From the cryptanalysis carried out in this investigation, they have seen that the strength of the cipher is remarkably good and it cannot be broken by any conventional attack.
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