Stream Cipher Based Modified Espresso Algorithm for 5G Communication

Authors

  • Chinmay Bepery Patuakhali Science and Technology University Dumki, Patuaakhali-8602 Bangladesh http://orcid.org/0000-0002-5837-2099
  • Simab Al Ahmmed Faculty CSE Patuakhali Science and Technology University Dumki, Patuaakhali-8602 Bangladesh
  • Md. Moazzem Hossain Riad Faculty CSE Patuakhali Science and Technology University Dumki, Patuaakhali-8602 Bangladesh
  • Md. Arifur Rahman Faculty of CSE Patuakhali Science and Technology University Dumki, Patuaakhali-8602 Bangladesh
  • Md. Samsuzzaman Department of CCE Patuakhali Science and Technology University Dumki, Patuaakhali-8602 Bangladesh
  • Sayed Md. Galib Department of CSE Jessore University of Science and Technology Jessore Bangladesh

Keywords:

Stream cipher, 5G, NLFSR, algebraic attack, Espresso

Abstract

Abstract

To meet the requirement of 5G communication, Dubrova and Hell design Espresso, which is a stream cipher. Espresso uses 128-bit key, 96-bit initial vector (IV) and a 6-degree Boolean function as its output function. Jia-Min and Wen-Feng showed that algebraic attack is possible with time complexity being O(2(66.86)). In this paper, we present a methodology for the modification of Espresso with reformed Galois configuration of 256-bit Nonlinear Feedback Shift Registers (NLFSR) and 8-degree Boolean function as its output function. The advantages of Galois and Fibonacci configuration of NLFSRs, short propagation delay, and 8-degree Boolean function are combined in our algorithm which make it invulnerable to the classical algebraic attack and correlation attack.

Keywords: Stream cipher, 5G, NLFSR, algebraic attack, Espresso

Cite this Article

Chinmay Bepery, Simab Al Ahmmed, Md. Moazzem Hossain Riad, Md. Arifur Rahman, Md. Samsuzzaman, Sayed Md. Galib. Stream Cipher Based Modified Espresso Algorithm for 5G Communication. Journal of Computer Technology & Applications. 2019; 10(1): 32–40p.


Author Biography

  • Chinmay Bepery, Patuakhali Science and Technology University Dumki, Patuaakhali-8602 Bangladesh
    Associate Professor
    Department of CIT
    Patuakhali Science and Technology University
    Dumki, Patuaakhali-8602
    Bangladesh

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Published

2019-05-18

Issue

Vol. 10 No. 1 (2019)

Section

Articles

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