A Modified AES-512 Bits Algorithm for Data Encryption

Authors

  • Kwame Owusu Bempah Christian Service University College
  • Kwasi Baah Gyamfi Kwame Nkrumah University of Science and Technology
  • Francis Ohene- Boateng Akenten Appiah - Menka University of Skills Training and Entrepreneurial Development
  • Isaac Owusu- Mensah Akenten Appiah - Menka University of Skills Training and Entrepreneurial Development

DOI:

https://doi.org/10.29020/nybg.ejpam.v17i2.5114

Keywords:

Cryptography, Encryption, Encryption Algorithm, AES

Abstract

Privacy is given top priority as far as communication involving transfer of confidential document or data is concerned. There is therefore a need to keep confidential data secretive from being invaded by unauthorised access, and this is done through cryptography algorithms, where the Advanced Encryption Standard algorithm has been the widely accepted symmetric block encryption algorithm for such purposes. This paper therefore focuses on developing a new AES-512 bits symmetric encryption algorithm through modification of the conventional AES-128 algorithm to be used purposefully in the classroom for document transfer.The development comes with increasing the plaintext bits of the conventional AES-128 algorithm to 512 bits plaintext which undergoes five operational transformations: STATE, SKGF, SRL, SCL and AARC through key size in the Galois field, GF(29). A numerical example is then given to explain the use of the algorithm, and finally, we provide a comparative study of this algorithm and other existing symmetric encryption models, such as the AES-128 and DES algorithms.

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Published

2024-04-30

Issue

Section

Nonlinear Analysis

How to Cite

A Modified AES-512 Bits Algorithm for Data Encryption. (2024). European Journal of Pure and Applied Mathematics, 17(2), 979-995. https://doi.org/10.29020/nybg.ejpam.v17i2.5114