Improved Data Encryption Standard Algorithm using Zigzag Scan for Secured Data Transmission
S. Hemasri1, S. Kiran2, A. Ranichitra3, A. Rajesh Kanna4
1S. Hemasri, Ph.D (Pursuing), Department of Computer Science, Madurai Kamraj University, Madurai (Tamil Nadu), India.
2Dr. S. Kiran, Associate Professor, Department of Computer Science and Engineering, Yogi Vemana University, Ganganapalle (A.P), India.
3Dr. A. Ranichitra, Assistant Professor, Department of Computer Science, S.Ramasamy NaiduMemorial College, Sattur (Tamil Nadu), India.
4Dr. A. Rajesh Kanna, Assistant Professor, Department of Computer Science, S.Ramasamy NaiduMemorial College, Sattur (Tamil Nadu), India.
Manuscript received on 04 April 2023 | Revised Manuscript received on 25 April 2023 | Manuscript Accepted on 15 May 2023 | Manuscript published on 30 May 2023 | PP: 26-37 | Volume-12 Issue-6, May 2023 | Retrieval Number: 100.1/ijitee.F95160512623 | DOI: 10.35940/ijitee.F9516.0512623
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© The Authors. Blue Eyes Intelligence Engineering and Sciences Publication (BEIESP). This is an open access article under the CC-BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/)
Abstract: 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 cypher released by the National Bureau of Standards (NBS). DES is a block cypher that performs encryption of each 64-bit block. Encryption of the data using an algorithm that translates the original data into an unreadable format, making it difficult for an intruder to attack. The DES is more secure than other cryptosystems because the time required for cryptanalysis has been minimised. Due to advancements in hardware techniques, the traditional DES may be vulnerable to various kinds of attacks through different cryptanalysis methods. This paper presents a new design of DES called the Improved DES, which demonstrates that the Improved DES is more secure than the DES against differential cryptanalysis. It divides each substitution box into four sub-blocks of 16 bits and then applies the zig-zag function to each of these sub-blocks. It improves the standard encryption levels by columnar transposition.
Keywords: Cryptography, DES, Zigzag Scan, Key Generation.
Scope of the Article: Cryptography