DIFFERENTIAL CRYPTANALYSIS FOR A 3-ROUND SPN
BibTeX
@MISC{Sakalli_differentialcryptanalysis,
author = {M. Tolga Sakalli and Ercan Bulus and Andac Sahin and Fatma Buyuksaracoglu},
title = {DIFFERENTIAL CRYPTANALYSIS FOR A 3-ROUND SPN},
year = {}
}
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Abstract
SPNs (Substitution Permutation Networks) are one of the important architectures used for designing block ciphers. In our study, we applied differential cryptanalysis method for a 3-round SPN. We have used a 16-bit input as plaintext and 16-bit output as ciphertext and chosen the first row of the third S-box of DES (Data Encryption Standard) for the necessary S-box and ShiftRows transformation which is used to permute bytes in AES (Advanced Encryption Standard) for permutation of bits for our SPN. As a result, we have obtained 12-bit key of 16-bit key from the last round of the cipher using differential cryptanalysis method. I.
