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Enhancing the Security of Caesar Cipher Algorithm by Designing a Hybrid Cryptography System

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International Journal of Computer Applications
Foundation of Computer Science (FCS), NY, USA
Year of Publication: 2021
Authors:
Md. Ebrahim Hossain
10.5120/ijca2021921585

Md. Ebrahim Hossain. Enhancing the Security of Caesar Cipher Algorithm by Designing a Hybrid Cryptography System. International Journal of Computer Applications 183(21):55-57, September 2021. BibTeX

@article{10.5120/ijca2021921585,
	author = {Md. Ebrahim Hossain},
	title = {Enhancing the Security of Caesar Cipher Algorithm by Designing a Hybrid Cryptography System},
	journal = {International Journal of Computer Applications},
	issue_date = {September 2021},
	volume = {183},
	number = {21},
	month = {Sep},
	year = {2021},
	issn = {0975-8887},
	pages = {55-57},
	numpages = {3},
	url = {http://www.ijcaonline.org/archives/volume183/number21/32062-2021921585},
	doi = {10.5120/ijca2021921585},
	publisher = {Foundation of Computer Science (FCS), NY, USA},
	address = {New York, USA}
}

Abstract

Cryptography is the art of protecting information by transforming it into an unreadable format. It is about constructing and analyzing protocols that prevent third parties or the public from reading private message. Caesar cipher is a substitution cipher that implements monoalphabetic substitutions. It is a very old encryption technique and major disadvantage of caesar cipher is the repeating nature of its keys. In this paper an advanced encryption algorithm is proposed which improves the security of caesar method by combining traditional playfair approach and a modern cipher method like stream cipher. When applying the proposed method, three different key is used which makes the algorithm more strong.

References

  1. Shivam Vatshayan, Raza Abbas Haidri, Jitendra Kumar Verma (2020). Design of Hybrid Cryptography System based on Vignere Cipher and Polybius Cipher. Published by International Conference on Computational Performance Evaluation, North Eastern Hill University, Shilong, Meghalaya, India.
  2. Fairouz Mushtaq Sher Ali, Falah Hassan Sarhan. Enhancing Security of Vignere Cipher by Stream Cipher. Published by International Journal of Computer Applications (0975-8887), Volume-100, No. 1, August 2014.
  3. O.E. Omolara, A.I. Oludare and S.E. Abdulahi (2014). Developing a Modified Hybrid Caesar Cipher and Vigenere Cipher for Secure Data Communication. Published by Computer Engineering and Intelligent Systems. ISSN 2222-1719 (Paper) ISSN 2222-2863 (Online), Vol.5, No.5, 2014.
  4. Fairouz Mushtaq Sher Ali (2014). Enhancing the Security of Playfair Cipher by Stream Cipher. Published by Journal of AL Qadisiyah for Computer Science and Mathematics, Volume-6, No-2, Year-2014.
  5. Self-Study: ASCII Symbol of non-printable characters. URL: https://en.wikipedia.org/wiki/C0_and_C1_control_codes#SOH. Retreived Date: 15 July, 2021.

Keywords

Substitution Cipher, Plaintext, Ciphertext, Key, Stream Cipher.