An Enhancement of Text Encryption Algorithm with Hybrid Two-Square Cipher and Columnar Transposition Cipher

  • Mary Grace O. Ostia Computer Science Department, Pamantasan ng Lungsod ng Maynila, Philippines
  • Alessa L. Crisostomo Computer Science Department, Pamantasan ng Lungsod ng Maynila, Philippines
  • David Jhozel R. Lucas Computer Science Department, Pamantasan ng Lungsod ng Maynila, Philippines
  • Francis Arlando L. Atienza Computer Science Department, Pamantasan ng Lungsod ng Maynila, Philippines
  • Raymund M. Dioses Computer Science Department, Pamantasan ng Lungsod ng Maynila, Philippines
  • Jamillah S. Guialil Computer Science Department, Pamantasan ng Lungsod ng Maynila, Philippines
  • Leisyl M. Mahusay Computer Science Department, Pamantasan ng Lungsod ng Maynila, Philippines
  • Jonathan Morano Computer Science Department, Pamantasan ng Lungsod ng Maynila, Philippines

Abstract

Purpose – Enhance the Two-Square Cipher's effectiveness by developing an algorithm to address vulnerabilities in plaintext variations, character set limitations and encryption performance.

Method – Proposed adjustments include expanding the grid to 14x14, using table shuffling instead of random character insertion, and strategically inserting random special characters in odd-length plaintexts.

Results – The algorithm demonstrated improved encryption, producing more random ciphertext sequences and successfully recovering original characters during decryption.

Conclusion – The developed algorithm outperforms the current Two-Square Cipher, enhancing encryption security and adaptability to different plaintexts.

Recommendations – Further enhance the algorithm to address specific issues such as character transformation, while maintaining the grid size at 14x14.

Research Implications – Contributes to advancing cryptographic techniques, highlighting the importance of addressing vulnerabilities in existing ciphers to strengthen data security.

Author Biographies

Mary Grace O. Ostia, Computer Science Department, Pamantasan ng Lungsod ng Maynila, Philippines

Mary Grace O. Ostia is a fourth-year Bachelor of Science in Computer Science student at Pamantasan ng Lungsod ng Maynila (PLM). She is also a former officer of the PLM Computer Science Society (CSS). She graduated Senior High School with Honors and has consistently been on the Dean's List throughout her college years.

Alessa L. Crisostomo, Computer Science Department, Pamantasan ng Lungsod ng Maynila, Philippines

Born on August 9, 2001, Alessa L. Crisostomo is a fourth-year student at Pamantasan ng Lungsod ng Maynila, majoring in Computer Science. Alessa's commitment to excellence was evident as she graduated with high honors from senior high at the Philippines College of Criminology.

David Jhozel R. Lucas, Computer Science Department, Pamantasan ng Lungsod ng Maynila, Philippines

David Jhozel R. Lucas is a fourth-year (4th) computer science student from Pamantasan ng Lungsod ng Maynila (PLM). He completed his secondary education at San Jose Academy with honors. Throughout his twenty-one (21) years of existence, Lucas has been known for having a diverse set of interests, ranging from arts-related interests to sports and technology. All these interests have shaped him into a well-rounded individual with a passion-driven personality.

Francis Arlando L. Atienza, Computer Science Department, Pamantasan ng Lungsod ng Maynila, Philippines

Francis Arlando L. Atienza is a professor of Pamantasan ng Lungsod ng Maynila.

Raymund M. Dioses, Computer Science Department, Pamantasan ng Lungsod ng Maynila, Philippines

Raymund M. Dioses is a professor and chairperson of the Computer Science Department at Pamantasan ng Lungsod ng Maynila.

Jamillah S. Guialil, Computer Science Department, Pamantasan ng Lungsod ng Maynila, Philippines

Jamillah S. Guialil is a professor of Pamantasan ng Lungsod ng Maynila.

Leisyl M. Mahusay, Computer Science Department, Pamantasan ng Lungsod ng Maynila, Philippines

Leisyl M. Mahusay is a professor of Pamantasan ng Lungsod ng Maynila.

Jonathan Morano, Computer Science Department, Pamantasan ng Lungsod ng Maynila, Philippines

 Jonathan Morano is a professor of Pamantasan ng Lungsod ng Maynila.

Published
2024-08-23
How to Cite
OSTIA, Mary Grace O. et al. An Enhancement of Text Encryption Algorithm with Hybrid Two-Square Cipher and Columnar Transposition Cipher. International Journal of Computing Sciences Research, [S.l.], v. 8, p. 3202-3216, aug. 2024. ISSN 2546-115X. Available at: <//stepacademic.net/ijcsr/article/view/613>. Date accessed: 09 oct. 2024.
Citation Formats
Issue
Vol 8 (2024): Volume 8
Section
Articles

This is an Open Access article distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/4.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly credited.

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