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All Journal International Journal of Computer Science and Information Technology
Yohanes Dwi Cahyono
Department of Cyber Security Engineering, Army Polytechnic, Batu-Malang, East Java, Indonesia
Computer Science & IT

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IMPROVING END-TO-END ENCRYPTION SECURITY ON HTTP USING A GREGORIAN DAN JAVANESE CALENDAR-BASED KEY GENERATOR Eko Heri Susanto; Yohanes Dwi Cahyono; Riyant Budi S
International Journal of Computer Science and Information Technology Vol. 2 No. 1 (2025): IJCOMIT Vol 2 No 1
Publisher : Computer Science Department, Malang National Institute of Technology

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36040/ijcomit.v2i1.12872

Abstract

This research investigates an end-to-end encryption method with a dynamic key generator based on the conversion of the Gregorian calendar to the Javanese calendar to improve the security of the Hypertext Transfer Protocol (HTTP) and Hypertext Transfer Protocol Secure (HTTPS) protocols, which remain vulnerable to attacks. The research generates unique asymmetric keys down to the millisecond level without affecting the speed of the web server. However, this method has a downside: the data size (transfer size) doubles because the ciphertext encoding still uses hexadecimal
UTILIZING RC5 ENCRYPTION TO OPTIMIZE CONTENT SECURITY IN WEB APPLICATIONS Wirpan Atmaja Putra; Alldino Allban Prakasa; Yohanes Dwi Cahyono
International Journal of Computer Science and Information Technology Vol. 2 No. 1 (2025): IJCOMIT Vol 2 No 1
Publisher : Computer Science Department, Malang National Institute of Technology

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36040/ijcomit.v2i1.13101

Abstract

The rapid advancement of information and communication technology has led to an increased use of web applications, but also brought challenges in data security. The widely used HTTP protocol remains vulnerable to threats such as data theft and cyber-attacks. One solution to mitigate these issues is the use of client-side encryption methods, such as the RC5 algorithm, which provides high flexibility in encryption parameter configurations. This research analyzes the implementation of the RC5 algorithm in enhancing web application data security. A web application prototype utilizing RC5 encryption was developed and tested for encryption time, decryption time, and memory consumption. Test results indicate that the RC5 algorithm enhances data security without significantly compromising application performance. However, an increase in processing load was observed on low-specification devices. This study also highlights the importance of adjusting RC5 parameters to balance security and performance
Co-Authors Alldino Allban Prakasa Eko Heri Susanto Riyant Budi S Wirpan Atmaja Putra