-1e416013186c20a17cb-2f12 20230429011829077 beie:beie director@blueeyesintelligence.org WEB-FORM International Journal of Innovative Technology and Exploring Engineering IJITEE 22783075 10.35940/ijitee https://www.ijitee.org/ 05 30 2023 12 6 Ph.D (Pursuing), Department of Computer Science, Madurai Kamraj University, Madurai (Tamil Nadu), India S. Hemasri https://orcid.org/0009-0001-6103-0276 Dr. S. Kiran https://orcid.org/0000-0002-0725-3356 Associate Professor, Department of Computer Science and Engineering, Yogi Vemana University, Ganganapalle (A.P), India Dr. A. Ranichitra https://orcid.org/0000-0001-6071-0635 Assistant Professor, Department of Computer Science, S.Ramasamy NaiduMemorial College, Sattur (Tamil Nadu), India Dr. A. Rajesh Kanna https://orcid.org/0000-0001-5161-4334 Assistant Professor, Department of Computer Science, S.Ramasamy NaiduMemorial College, Sattur (Tamil Nadu), India The cryptosystem is a combination of cryptographic algorithms used to provide security services for the information. One of them is the data encryption standard also known as DES which is a symmetric-key block cipher released by national bureau of standard (NBS). DES is a block cipher and perform encryption of each block of size 64 bits. Encryption of the data by using an algorithm which translates the original data into an unreadable format which is not easy for the intruder to attack. The DES is secure than the other cryptosystems, because the time required for processing cryptanalysis has minimized and because of the development in the hardware technique, the traditional DES may be unsafe by different kinds of attacks by the different cryptanalysis. This paper implements a new design of DES called the Improved DES which exhibits that the improved DES is secure than the DES against differential cryptanalysis. It divides each substitution box into four sub blocks of 16 bits and then executes the zig-zag function of each of the 4-sub blocks. It improves the standard encryption levels by columnar transposition. 05 30 2023 26 37 CC BY-NC-ND 4.0 10.35940/BEIESP.CrossMarkPolicy www.ijitee.org true No, I did not receive. No conflicts of interest to the best of our knowledge. No, the article does not require ethical approval and consent to participate with evidence. Not relevant. S. Hemasri; methodology, S. Hemasri, S.Kiran, and Rajeshkanna Coding, A.Ranichitra; validation, S. Kiran, A.Rajeshkanna, and A. Ranichitra; investigation, S. Kiran and A.Rajeshkanna; resources, S.Hemasri; writing—original draft preparation, S.Hemasri, and S. Kiran; writing—review and editing, S.Hemasri, S. Kiran and A.Ranichitra. All authors have read and agreed to the published version of the manuscript. 10.35940/ijitee.F9516.0512623 https://www.ijitee.org/portfolio-item/F95160512623/