A Novel Approach for Data Encryption Standard Algorithm

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Provided by: International Journal of Engineering and Advanced Technology (IJEAT)
Topic: Security
Format: PDF
In this paper, the authors are considering The DES algorithm that defines the mathematical steps that transform original text (plain text) into a cipher text (secret code) and also transform the cipher text back to the original text. Here introduces a new method to enhance the performance of the Data Encryption Standard (DES) algorithm. This is done by replacing the 8/32 S-Box instead of 6/4 S-Box. The output of each S-Box undergoes AND and XOR operation before going to the permutation P. In this paper, they also proposed a new operation Addition modulo instead predefined XOR operation applied during the 16 round of the standard algorithm.
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