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One Method for RC5 Algorithm’s Cryptographic Strength Improving

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Soft Computing for Security Applications

Part of the book series: Advances in Intelligent Systems and Computing ((AISC,volume 1397))

Abstract

Encryption of electronic data requires the use of crypto resistant functions. Especially relevant is the increase of the stability of block algorithms, in particular, RC5, which is part of various open cryptographic libraries. The article presents a method for improving the crypto stability of the classical RC5 algorithm with the help of nonlinear bit offset functions without increasing RC5 computational complexity. The modeling of the cryptographic system implemented based on RC5 crypto-algorithm modification is carried out in the article and obtained time and quality characteristics of the modified algorithm. The reliability of the cryptosystem obtained based on the improved RC5 algorithm is verified by the absence of statistical correlation between the input message blocks and the output blocks, as well as the absence of collisions, in which it is possible to obtain the same sequence of bits at the output with different messages at the input.

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Author information

Authors and Affiliations

  1. National University of Life and Environmental Sciences of Ukraine, Kiev, Ukraine

    Lakhno Valeriy

  2. Institute of Engineering, Thermophysics of NAS of Ukraine, Kiev, Ukraine

    Sahun Andrii & Khaidurov Vladyslav

  3. National University of Life and Environmental Sciences of Ukraine, Kiev, Ukraine

    Gusev Boris

  4. Private Higher Educational Establishment “European University”, Kiev, Ukraine

    Kravchuk Petro

  5. Head of the Laboratory of Educational and Scientific Work, State Scientific Research Forensic Center of the Ministry of Internal Affairs of Ukraine, Kyiv, Ukraine

    Kosenko Svitlana

Authors
  1. Lakhno Valeriy
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  2. Sahun Andrii
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  3. Khaidurov Vladyslav
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  4. Gusev Boris
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  5. Kravchuk Petro
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  6. Kosenko Svitlana
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Corresponding author

Correspondence to Sahun Andrii .

Editor information

Editors and Affiliations

  1. Department of Electronics and Communication Engineering, Gnanamani College of Technology, Namakkal, India

    G. Ranganathan

  2. Ryerson Communications Lab, Toronto, ON, Canada

    Xavier Fernando

  3. Rutgers Cancer Institute of New Jersey, New Brunswick, NJ, USA

    Fuqian Shi

  4. Department of Computer Science, University of Sultan Moulay Slimane, Beni Mellal, Morocco

    Youssouf El Allioui

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© 2022 The Author(s), under exclusive license to Springer Nature Singapore Pte Ltd.

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Valeriy, L., Andrii, S., Vladyslav, K., Boris, G., Petro, K., Svitlana, K. (2022). One Method for RC5 Algorithm’s Cryptographic Strength Improving. In: Ranganathan, G., Fernando, X., Shi, F., El Allioui, Y. (eds) Soft Computing for Security Applications . Advances in Intelligent Systems and Computing, vol 1397. Springer, Singapore. https://doi.org/10.1007/978-981-16-5301-8_2

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