An efficient and secure linear diffusion layer for 256-bit block cipher based on FLC structure

Authors

  • Trần Sỹ Nam
  • Nguyễn Văn Long
  • Nguyễn Bùi Cương

DOI:

https://doi.org/10.54654/isj.v1i16.920

Keywords:

linear diffusion layer, efficient implementation, FLC structure, block cipher

Tóm tắt

Abstract— In this paper, we propose a secured and efficient linear diffusion layer that suitable for block cipher with 256-bit block size named FLC.  Specifically, we have generated an 8×8 MDS matrix that has the power of a companion matrix over a finite field. We also perform a performance evaluation of the encryption/decryption process on various platforms. Our experimental results show that block cipher with our proposed linear diffusion layer is perfectly suitable for real life applications.

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References

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Published

2023-02-13

How to Cite

Nam, T. S., Long, N. V., & Cương , N. B. (2023). An efficient and secure linear diffusion layer for 256-bit block cipher based on FLC structure. Journal of Science and Technology on Information Security, 2(16), 31-38. https://doi.org/10.54654/isj.v1i16.920

Issue

No 2. CS (16) 2022

Section

Papers

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2. Authors are able to enter into separate, additional contractual arrangements for the non-exclusive distribution of the journal's published version of the work (e.g., post it to an institutional repository or publish it in a book), with an acknowledgement of its initial publication in this journal.

3. Authors are permitted and encouraged to post their work online (e.g., in institutional repositories or on their website) prior to and during the submission process, as it can lead to productive exchanges, as well as earlier and greater citation of published work (See The Effect of Open Access).