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All Journal Jurnal Teknologi dan Sistem Komputer IJISTECH (International Journal Of Information System & Technology) Indonesian Journal of Combinatorics IJISTECH
Diksy Media Firmansyah
Department Of Informatics, Faculty Of Computer Science, Universitas Jember, Jl. Kalimantan No. 37, Kampus Tegalboto, Jember 68121|Universitas Jember
Computer Science & IT Decision Sciences, Operations Research & Management Electrical & Electronics Engineering Engineering Social Sciences

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Cloud Computing Implementation with Docker Engine Swarm Mode for Data Availability Infrastructure of Rice Plants Oktalia Juwita; Diksy Media Firmansyah
IJISTECH (International Journal of Information System and Technology) Vol 1, No 2 (2018): May
Publisher : Sekolah Tinggi Ilmu Komputer (STIKOM) Tunas Bangsa

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30645/ijistech.v1i2.10

Abstract

Data of rice plant is important in Indonesia because rice is the staple food for Indonesian people. Rice plant data can be formatted into web service, so anyone can access the information from anywhere by using internet. But, high numbers of request are the problem for web server apps. One of the solution is by distributing request into some server. In this paper, we will compare failed request and time per request in conventional server and clustered server with docker swarm. Server apps in clustered server shows lower value of failed request than conventional server in our experiment. With two containers, number of failed request obtain 0.78% lower than conventional server in 25.000 requests, and 0.69% lower than conventional server in 50.000 requests.
Alternatif otentikasi menggunakan metode steganografi histogram shifting Irsandy Maulana Satya Viddin; Antonius Cahya Prihandoko; Diksy Media Firmansyah
Jurnal Teknologi dan Sistem Komputer Volume 9, Issue 2, Year 2021 (April 2021)
Publisher : Department of Computer Engineering, Engineering Faculty, Universitas Diponegoro

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14710/jtsiskom.2021.13931

Abstract

Penelitian ini bertujuan mengembangkan alternatif otentikasi dengan menerapkan metode steganografi Histogram shifting. Media yang digunakan untuk otentikasi adalah media citra. Histogram shifting memanfaatkan histogram suatu citra untuk menyisipkan pesan rahasia. Alternatif otentikasi telah menerapkan metode Histogram shifting untuk menyisipkan kredensial pengguna ke dalam citra pembawa. Citra hasil steganografi dapat digunakan untuk masuk ke akun pengguna dengan cara mengekstrak kredensial dari citra tersebut ketika proses log in. Pengujian PSNR citra stego menghasilkan nilai rata-rata sebesar 52,52 dB. Pengujian kemampuan ekstraksi menunjukkan semua citra uji dapat diekstrak dengan tepat. Selain itu, metode otentikasi ini juga lebih tahan terhadap serangan yang umum dilakukan pada otentikasi menggunakan kata sandi.
Randomness of encryption keys generated by super H-antimagic total labeling Antonius Cahya Prihandoko; Yudha Alif Auliya; Diksy Media Firmansyah; S Slamin
Indonesian Journal of Combinatorics Vol 4, No 1 (2020)
Publisher : Indonesian Combinatorial Society (InaCombS)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.19184/ijc.2020.4.1.3

Abstract

SuperH-antimagic total labeling (SHATL) can be utilized to generate encryption keys. The keys are then used to establish the improved block and stream ciphers. In these ciphers, different blocks were encrypted by the different keys, but all block keys were connected one another. These conditions make the developed cryptosystems more secure and require less keys storage capacity compared to the ordinary block and stream cipher. The randomness of the generated keys, however, still need to be tested. The test is necessary to ensure that there is no specific pattern that can be utilized by any intruder to guess the keys. This paper presents the randomness tests applied to all key sequences generated by both the improved block scheme and the stream based scheme.
Cloud Computing Implementation with Docker Engine Swarm Mode for Data Availability Infrastructure of Rice Plants Oktalia Juwita; Diksy Media Firmansyah
IJISTECH (International Journal of Information System and Technology) Vol 1, No 2 (2018): May
Publisher : Sekolah Tinggi Ilmu Komputer (STIKOM) Tunas Bangsa

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30645/ijistech.v1i2.10

Abstract

Data of rice plant is important in Indonesia because rice is the staple food for Indonesian people. Rice plant data can be formatted into web service, so anyone can access the information from anywhere by using internet. But, high numbers of request are the problem for web server apps. One of the solution is by distributing request into some server. In this paper, we will compare failed request and time per request in conventional server and clustered server with docker swarm. Server apps in clustered server shows lower value of failed request than conventional server in our experiment. With two containers, number of failed request obtain 0.78% lower than conventional server in 25.000 requests, and 0.69% lower than conventional server in 50.000 requests.
Co-Authors Antonius Cahya Prihandoko Irsandy Maulana Satya Viddin Oktalia Juwita S Slamin Yudha Alif Auliya