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A Novel Approach for Security Enhancement of Data Encryption Standard

Dawood Shah1,*, Tariq Shah1, Sajjad Shaukat Jamal2, Mohammad Mazyad Hazzazi2, Amer Aljaedi3, Adel R. Alharbi3

1 Department of Mathematics, Quaid-i-Azam University, Islamabad, Pakistan
2 Department of Mathematics, College of Science, King Khalid University, Abha, Saudi Arabia
3 College of Computing and Information Technology, University of Tabuk, Tabuk, 71491, Saudi Arabia

* Corresponding Author: Dawood Shah. Email: email

Computers, Materials & Continua 2023, 75(3), 5073-5086.


Data Encryption Standard (DES) is a symmetric key cryptosystem that is applied in different cryptosystems of recent times. However, researchers found defects in the main assembling of the DES and declared it insecure against linear and differential cryptanalysis. In this paper, we have studied the faults and made improvements in their internal structure and get the new algorithm for Improved DES. The improvement is being made in the substitution step, which is the only nonlinear component of the algorithm. This alteration provided us with great outcomes and increase the strength of DES. Accordingly, a novel good quality S-box construction scheme has been hired in the substitution phase of the DES. The construction involves the Galois field method and generates robust S-boxes that are used to secure the scheme against linear and differential attacks. Then again, the key space of the improved DES has been enhanced against the brute force attack. The outcomes of different performance analyses depict the strength of our proposed substitution boxes which also guarantees the strength of the overall DES.


Cite This Article

APA Style
Shah, D., Shah, T., Jamal, S.S., Hazzazi, M.M., Aljaedi, A. et al. (2023). A novel approach for security enhancement of data encryption standard. Computers, Materials & Continua, 75(3), 5073-5086.
Vancouver Style
Shah D, Shah T, Jamal SS, Hazzazi MM, Aljaedi A, Alharbi AR. A novel approach for security enhancement of data encryption standard. Comput Mater Contin. 2023;75(3):5073-5086
IEEE Style
D. Shah, T. Shah, S.S. Jamal, M.M. Hazzazi, A. Aljaedi, and A.R. Alharbi "A Novel Approach for Security Enhancement of Data Encryption Standard," Comput. Mater. Contin., vol. 75, no. 3, pp. 5073-5086. 2023.

cc This work is licensed under a Creative Commons Attribution 4.0 International License , which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
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