Implementasi Algoritma Caesar Cipher untuk Enkripsi dan Dekripsi Pesan
DOI:
https://doi.org/10.62383/polygon.v4i1.925Keywords:
Caesar Cipher, Cryptography, Decryption, Encryption, Information SecurityAbstract
Information security is an essential aspect of digital communication, particularly in the exchange of text-based messages through open networks. Messages transmitted without protection are vulnerable to interception and unauthorized modification. One classical cryptographic technique that remains relevant as a foundational learning tool is the Caesar Cipher algorithm. This study aims to implement the Caesar Cipher algorithm for message encryption and decryption and to analyze its effectiveness and security level. The research method employed is a descriptive approach through literature review and a case study by applying character-shift techniques to text messages. The results indicate that the Caesar Cipher algorithm successfully transforms plaintext into ciphertext and restores it back to its original form through the decryption process. Although the algorithm is simple and easy to implement, it has significant limitations in terms of security due to its small key space and vulnerability to brute-force attacks. Therefore, Caesar Cipher is not suitable for protecting sensitive data but remains valuable as an introductory model for understanding basic cryptographic concepts.
Downloads
References
Alfirdaus, M. H., Tahir, M., & Dewanti, N. E. (2023). Perancangan aplikasi enkripsi deskripsi menggunakan metode Caesar cipher berbasis web. Jurnal Teknologi Multimedia dan Informatika, 2(2), 1–8. https://doi.org/10.55606/jtmei.v2i2.1628
Aprianti, E., & Marsehan, A. (2025). Analisis dan implementasi algoritma Caesar cipher dalam pengamanan pesan teks berbasis web di desa. Digitech Journal, 5(1), 191–196. https://doi.org/10.47709/digitech.v5i1.5984
Ardiansyah, F. D., Damayanti, A., Azzahra, C., Putri, M., Fitria, A., Rany, D., Biroso, S. J., & Tahir, M. (2023). Implementasi kriptografi Caesar cipher pada aplikasi enkripsi dan dekripsi. Jurnal UISIK, 3(1), 1–9. https://doi.org/10.55606/juisik.v3i1.438
Balamurugan, C., Singh, K., Ganesan, G., & Rajarajan, M. (2021). Post-quantum and code-based cryptography: Some prospective research directions. Cryptography, 5(4), Article 38, 1–30. https://doi.org/10.3390/cryptography5040038
Caesar, K., Cipher, H., Sylviani, S., Kartiwa, A., Permana, F. C., Hadi, A. N., & Kadir, M. P. (2023). Aplikasi matriks untuk meningkatkan keamanan proses kriptografi Caesar, Vernam, dan Hill cipher. Jurnal Sains dan Teknologi Undiksha, 12(2), 502–515. https://doi.org/10.23887/jstundiksha.v12i2.52801
Informasi, J. T. (2025). Penerapan algoritma Caesar cipher pada aplikasi pengaman pesan berbasis website. Jurnal Teknologi Informasi, 15(2), 92–98. https://doi.org/10.36382/jti-tki.v15i2.530
Menggunakan, E., Vigenere, A., & Caesar, D. A. N. (2021). Peningkatan keamanan data melalui teknik super enkripsi. Prosiding Seminar Nasional Teknologi Informasi, 315–322.
Noviyanti, P., & Bhuana, I. S. (2022). Analisa algoritma kriptografi klasik Caesar cipher, Vigenere cipher, dan Hill cipher: Studi literatur. JIFOTECH, 2(1), 23–29. https://doi.org/10.46229/jifotech.v2i1.387
Olanrewaju, S. B., Eguavoen, O. V., Okunade, A., & Adekunle, O. (2025). A modified Caesar cipher encryption technique for secured information sharing. Fountain Journal of Science, 9(5), 180–186. https://doi.org/10.33003/fjs-2025-0905-3494
Pramudya, F. A., & Suhardi. (2025). Analisis keamanan komparatif Caesar cipher dan DES dalam konteks teknik kriptografi modern. Jurnal Sistem Informasi dan Keamanan, 2(3), 96–105.
Purnamasari, D., Dewi, A. K., & Trisetiyanto, A. N. (2022). Analisis performansi kriptografi berbasis Caesar cipher untuk keamanan data menggunakan Python pada tembang macapat. Jurnal SITEe, 1(2), 50–54. https://doi.org/10.31331/jsitee.v1i2.2079
Rahma, S. A., Putri, T., Novitasari, A., Djawas, F. W. S., & Zy, A. T. (2025). Implementasi keamanan data dalam sistem informasi manajemen. Jurnal Sistem Informasi, 30, 92–98.
Ramadhan, S. S., & Rahman, R. (2024). Implementasi enkripsi dan keamanan kriptografi. Digibe Journal, 2(2), 110–117. https://doi.org/10.25134/digibe.v2i2.46
Siagian, A. A., & Indra, Z. (2025). Analisis teknik Playfair dan shift cipher sebagai metode kriptografi klasik untuk keamanan data. Jurnal Komputer dan Teknologi, 4(1), 13–19. https://doi.org/10.58290/jukomtek.v4i1.315
Siregar, M., Jinan, A., Muhammad, T., & Gunung, R. (2024). Disguising text using Caesar cipher, reverse cipher, and least significant bit (LSB) algorithms in video. Journal of Computer Networks, Architecture and High Performance Computing, 6(3), 1134–1144. https://doi.org/10.47709/cnahpc.v6i3.4217
Teknik, F., Informasi, S., Utama, U. P., Yos, A. K. L., Medan, S., & Utara, S. (2025). Implementasi kriptografi dengan Caesar cipher pada fitur pesan di WhatsApp untuk keamanan. MARS Journal, 3(4), 1–8. https://doi.org/10.61132/mars.v3i4.978
Thakkar, B. (2025). A comprehensive study of substitution and transposition techniques in cryptographic systems. International Journal of Cryptography Studies, 13(2), 15–19.
Uci Julya Ningsih, Salsabila, S., Hutapea, I., Santika, D., & Gunawan, I. (2024). Pendekripsian Caesar cipher dengan menggunakan teknik-teknik kriptanalisis. Jurnal Ilmu Komputer dan Multimedia, 1(1), 11–15. https://doi.org/10.46510/ilkomedia.v1i1.10
Utomo, R., Syafaat, M., Widiatmoko, D., & Maulana, R. (2025). Cryptographic security analysis of the shift password method using the Google Colab application. Jurnal Tekno, 12(1), 104–109. https://doi.org/10.37373/tekno.v12i1.1231
Ziliwu, K. B., Maslan, A., & Kremer, H. (2022). Implementasi Caesar cipher pada algoritma kriptografi dalam penyandian pesan WhatsApp. Jurnal Informatika, 2, 117–125.
Downloads
Published
How to Cite
Issue
Section
License
Copyright (c) 2026 Polygon : Jurnal Ilmu Komputer dan Ilmu Pengetahuan Alam
This work is licensed under a Creative Commons Attribution-ShareAlike 4.0 International License.
