کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
6422696 1341217 2014 10 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Differential entropy analysis of the IDEA block cipher
موضوعات مرتبط
مهندسی و علوم پایه ریاضیات ریاضیات کاربردی
پیش نمایش صفحه اول مقاله
Differential entropy analysis of the IDEA block cipher
چکیده انگلیسی

This paper describes a new cryptanalytic technique that combines differential cryptanalysis with Shannon entropy. We call it differential entropy (DE). The objective is to exploit the non-uniform distribution of output differences from a given mapping as a distinguishing tool in cryptanalysis. Our preferred target is the IDEA block cipher, since we detected significantly low entropy at the output of its multiplication operation. We looked to further extend this entropy analysis to larger components and for a number of rounds. We present key-recovery attacks on up to 2.5-round IDEA in the single-key model and without weak-key assumptions.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Computational and Applied Mathematics - Volume 259, Part B, 15 March 2014, Pages 561-570
نویسندگان
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