On the Security of the Stream Ciphers RCR-64 and RCR-32-Reference-Cited by-同舟云学术

On the Security of the Stream Ciphers RCR-64 and RCR-32

Published:2021-09-13 Issue: Volume: Page:
ISSN:0010-4620
Container-title:The Computer Journal
language:en
Short-container-title:

Author:

Joseph Mabin¹²,Sekar Gautham³,Balasubramanian R²⁴,Venkiteswaran G⁵

Affiliation:

1. Computer Division, Indira Gandhi Centre for Atomic Research, Kalpakkam, 603102, India

2. Homi Bhabha National Institute (HBNI), Mumbai, 400094, India

3. Madras Fintech Services Pvt. Ltd, Chennai, 600100, India

4. Mathematics Group, The Institute of Mathematical Sciences, Chennai, 600113, India

5. Department of Mathematics, Birla Institute of Technology & Science, Pilani, 333031, India

Abstract

Abstract The stream ciphers RCR-64 and RCR-32 designed by Sekar et al. are the most recent additions to the Py-family of stream ciphers, originally designed by Biham et al. The ciphers are among the fastest stream ciphers on software. To the best of our knowledge, the only reported attacks on the ciphers are due to Ding et al., published in the Journal of Universal Computer Science. In this paper, we review these alleged attacks on the RCR ciphers and show that they are based on non-existent keystream biases stemming from flawed probability calculations.

Publisher

Oxford University Press (OUP)

Subject

General Computer Science

Link

http://academic.oup.com/comjnl/advance-article-pdf/doi/10.1093/comjnl/bxab128/40353313/bxab128.pdf

Reference26 articles.

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2. Pypy: Another Version of Py;Biham,2006

3. Comparison of 256-Bit Stream Ciphers at the Beginning of 2006;Bernstein,2006

4. eSTREAM—Update 1;ECRYPT Network of Excellence,2005

5. Tweaking the IV Setup of the Py Family of Stream Ciphers—The Ciphers TPy, TPypy, and TPy6;Biham,2007

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