Debdeep Mukhopadhyay, Dipanwita RoyChowdhury  Home/Search
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Abstract: The classical technique to perform key mixing in block ciphers is through exclusive-or (exor). In this paper we show that when the n-bit key is mixed in a block cipher of size n bits via addition modulo , the bias of the linear approximations falls exponentially fast. Experimental results have been provided to show that such a scheme cannot be cryptanalyzed using Linear Cryptanalysis. (Update)
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BibTeX entry: (Update)
D. Mukhopadhyay and D. RoyChowdhury, \Key Mixing in Block Ciphers through Addition modulo 2 http://citeseer.ist.psu.edu/mukhopadhyay05key.html More
@misc{ mukhopadhyay-key,
author = "D. Mukhopadhyay and D. RoyChowdhury",
title = "Key Mixing in Block Ciphers through Addition modulo",
text = "D. Mukhopadhyay and D. RoyChowdhury, \Key Mixing in Block Ciphers through
Addition modulo 2",
url = "citeseer.ist.psu.edu/mukhopadhyay05key.html" }
Citations (may not include all citations):288 Linear Cryptanalysis method for DES cipher (context) - Matsui - 1993
103 A Proposal for a New Block Encryption Standard - Lai, Massey - 1991
36 Linear approximations of block ciphers (context) - Nyberg - 1995
28 New structure of block ciphers with provable security agains.. (context) - Matsui - 1996
5 Links between Di erential and Linear Cryptanalysis (context) - Chabaud, Vaudenay - 1994
3 Linear approximations of Addition Modulo (context) - Wallen - 2003
3 Cipher and Hash Function Design: Methods Based on Linear and.. (context) - Daemen - 1995
1 in First Advanced Encryption Standard (context) - Burwick, Coppersmith et al. - 1998
1 CRC Press Company (context) - Stinson, Theory et al. - 2002
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