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  1. Home
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  4. Randomness analysis on rectangle block cipher
 
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Randomness analysis on rectangle block cipher

Journal
Afkar
Date Issued
2020
Author(s)
Zakaria A.A.
Azni A.H.
Farida Hazwani Mohd Ridzuan 
Universiti Sains Islam Malaysia 
Zakaria N.H.
Daud M.
Abstract
In this paper, we analyze the randomness of the RECTANGLE cipher. RECTANGLE is a lightweight block cipher with 64-bit block size and variants key lengths of 80 and 128 bits. Lightweight block cipher requires less computing power than a block cipher algorithm which makes it more efficient to be implemented in low-resource devices. Randomness is an important property of a cryptography algorithm to make sure the output has no message pattern. The randomness testing was performed using the NIST Statistical Test Suite. A total of nine data categories were applied to generate 1,000 input sequences for each algorithm. RECTANGLE-80 and RECTANGLE-128 passed 98.73% and 98.48% of the randomness tests. Our analysis shows that both RECTANGLE variants seem to be non-random based on the 0.1% significance level. The experimental results from this paper identified some weaknesses that can be addressed in future research. � 2020 ACM.
Subjects

Block cipher

Cryptography

Lightweight

Randomness

RECTANGLE

Statistical test

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