Abstract
This paper presents a multiplication-addition structure in finite field that can be used in constructing round fimction F of the Generalized DES-like iterated cipher to strengthen ability against the differential attack. Four special round functions based on this multiplication-addition structure are investigated. It is proved that the probability of one round differential of any of these four round functions reaches its possible minimum respectively. Thus their corresponding ciphers are immune to differential cryptanalysis in a few rounds. Some practical consideration in the implementation of the generalized DES-like iterated cipher and IDEA-like iterated cipher are also given.
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© 1997 Springer-Verlag
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Zhu, F., Guo, BA. (1997). A multiplication-addition structure against differential attack. In: Han, Y., Okamoto, T., Qing, S. (eds) Information and Communications Security. ICICS 1997. Lecture Notes in Computer Science, vol 1334. Springer, Berlin, Heidelberg. https://doi.org/10.1007/BFb0028480
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DOI: https://doi.org/10.1007/BFb0028480
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