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Abstract Symmetric block ciphers differential properties with various round key operations are considered. It is shown that known ciphers with round operations other than XOR after small initial encryption rounds acquire random substitution properties of correspondent degree, but they achieve stationary maximal value two times smaller than maximal value acquired for round operation as bitwise XOR. It is concluded that application of round operations other than XOR does not lead to significant growth of provable cipher strength. It is mentioned that all iterative ciphers independently of round key operation type give the same maximal values of full differentials according to difference computation operation as bitwise XOR. Downloads PDF (Українська) Published 2013-03-13 How to Cite Lysytska, I., & Nastenko, A. (2013). DIFFERENTIAL PROPERTIES OF SYMMETRIC BLOCK CIPHERS WITH ROUND KEY MODULAR OPERATIONS OTHER THAN XOR. Radio Electronics, Computer Science, Control, (2). https://doi.org/10.15588/1607-3274-2012-2-18 More Citation Formats ACM ACS APA ABNT Chicago Harvard IEEE MLA Turabian Vancouver Download Citation Endnote/Zotero/Mendeley (RIS) BibTeX Issue No. 2 (2012): Radio Electronics, Computer Science, Control Section Mathematical and computer modelling License Copyright (c) 2014 I.V. Lysytska, A.A. Nastenko

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