Article Per Year (5 Year)
p-Index From 2019 - 2024
0.659
P-Index
This Author published in this journals
All Journal KLIK (Kumpulan jurnaL Ilmu Komputer) (e-Journal) Journal of Data Science and Software Engineering
Ahmad Rusadi
Unknown Affiliation
Computer Science & IT

Published : 3 Documents Claim Missing Document
Claim Missing Document
Check
Articles

Found 3 Documents
Search

 1 
STEGANOGRAFI UNTUK PESAN TERENKRIPSI MENGGUNAKAN ALGORITMA KRIPTOGRAFI RSA-CRT DI ANDROID Rudy Herteno; Wahyu Ramadansyah; Oni Soesanto; Radityo Adi Nugroho; Ahmad Rusadi
KLIK- KUMPULAN JURNAL ILMU KOMPUTER Vol 6, No 1 (2019)
Publisher : Lambung Mangkurat University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20527/klik.v6i1.246

Abstract

In computer science, one of the methods commonly used as a message security algorithm is LSB (Least Significant Bit) steganography. Steganography LSB is generally used without a message security system that avoids the influence of messages from the effort to eliminate the inserted message so that it needs to be developed with a combination of additional methods namely RSA-CRT algorithm. The implementation of the LSB method with the RSA-CRT algorithm can improve the security of the message to be inserted. The secret message is encrypted first using the RSA-CRT algorithm and then inserted in the image. The purpose of this study was to determine the feasibility of RSA-CRT cryptographic algorithms and LSB steganography implemented on android. Testing is done by measuring the processing time on different smartphones and different android versions as well. The result is the Android version and smartphone specifications do not affect the speed of the process of the message security application using RSA-CRT cryptographic algorithms and LSB steganography on Android. Keywords: Cryptography, Steganography, RSA-CRT, LSB, Android. Dalam ilmu komputer salah satu metode yang umumnya digunakan sebagai algoritma pengamanan pesan adalah steganografi LSB (Least Significant Bit). Steganografi LSB umumnya digunakan tanpa adanya suatu sistem keamanan pesan yang menghindari terpengaruh nya pesan dari upaya menghilangkan pesan yang disisipkan sehingga perlu dikembangkan dengan kombinasi metode tambahan yaitu algoritma RSA-CRT. Implementasi metode LSB dengan algoritma RSA-CRT dapat meningkatkan keamanan pesan yang akan disisipkan. Pesan rahasia dienkripsi terlebih dahulu menggunakan algoritma RSA-CRT lalu disisipkan dalam gambar. Tujuan dari penelitian ini adalah mengetahui kelayakan algoritma kriptografi RSA-CRT dan steganografi LSB di implementasikan di android. Pengujian dilakukan dengan cara mengukur waktu proses di smartphone yang berbeda dan versi android yang berbeda juga. Hasilnya versi android dan spesifikasi smartphone tidak mempengaruhi waktu kecepatan proses aplikasi pengamanan pesan menggunakan algoritma kriptografi RSA-CRT dan steganografi LSB di android. Kata kunci: Kriptografi, Steganografi, RSA-CRT, LSB, Android.
IMPLEMENTASI ALGORITMA ENKRIPSI RSA PADA APLIKASI INSTANT MESSAGING Ardiansyah Sukma Wijaya; Dodon T. Nugrahadi; Muhammad Itqan Mazdadi; Andi Farmadi; Ahmad Rusadi
Journal of Data Science and Software Engineering Vol 1 No 01 (2020)
Publisher : Fakultas MIPA Universitas Lambung Mangkurat

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (428.136 KB) | DOI: 10.20527/jdsse.v1i01.4

Abstract

At this time the use of instant messaging applications is increasingly used compared to the use of SMS or other media because of its use which is more practical and faster. From the other side, the message information sent certainly requires confidentiality so that the message is not spread and known by others. For this reason mechanisms are needed, one of which is encryption to maintain message security. This research will implement the RSA (Rivest Shamir Adleman) encryption algorithm in the instant messaging application. This study uses a key length scenario of RSA 1024, 2048, 4096, and 6144 bits and a message length of 125, 250, 500, and 1000 characters implemented on 3 different devices. The results of testing on time and speed are the shorter the key used, the process will be shorter and faster. Keywords : RSA, Processing Time, Processing Speed
ANALISIS SOFTWARE DEFINED NETWORK (SDN) MENGGUNAKAN OPENDAYLIGHT CONTROLLER DENGAN ANOVA REPEATED MEASURES Rifki Izdihar Oktvian Abas Pullah Rifki; Dodon T. Nugrahadi; M. Itqan Mazdadi; Andi Farmadi; Ahmad Rusadi
Journal of Data Science and Software Engineering Vol 3 No 01 (2022)
Publisher : Fakultas MIPA Universitas Lambung Mangkurat

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (429.266 KB)

Abstract

Abstract The rapid development of technology today makes the technology around us also become more advanced and continues to grow, this has an impact on the development of the internet network. Technology such as Software Defined Network (SDN) is needed because it results in improved performance in network management, control and data handling that allows it to be managed centrally and more easily by network administrators by separating the control plane and data plane. In this study, an analysis of the SDN architecture was carried out using the Opendaylight controller based on the parameters of throughput, delay and jitter which then can be seen how the performance of the SDN architecture in a topology by increasing the number of nodes. The throughput test shows that the custom topology has a significant increase in value and has a better average throughput value among other topologies. While in the delay and jitter test, the custom topology has a better average value even though it has an insignificant increase in the delay and jitter value when there is an increase in the number of nodes.
Co-Authors Andi Farmadi Ardiansyah Sukma Wijaya Dodon Turianto Nugrahadi Muhammad Itqan Mazdadi Oni Soesanto Radityo Adi Nugroho Rifki Izdihar Oktvian Abas Pullah Rifki Rudy Herteno Wahyu Ramadansyah