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All Journal JURNAL TEKNIK INFORMATIKA DAN SISTEM INFORMASI MDP Student Conference
Ahmad Farisi
Unknown Affiliation
Computer Science & IT Decision Sciences, Operations Research & Management Economics, Econometrics & Finance Electrical & Electronics Engineering

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Analisis Kinerja Algoritma Kriptografi Kandidat Advanced Encryption Standard (AES) pada Smartphone Ahmad Farisi
JATISI (Jurnal Teknik Informatika dan Sistem Informasi) Vol 4 No 2 (2018): JATISI MARET 2018
Publisher : Lembaga Penelitian dan Pengabdian pada Masyarakat (LPPM) STMIK Global Informatika MDP

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (203.73 KB) | DOI: 10.35957/jatisi.v4i2.103

Abstract

Rijndael algorithm is the choosen algorithm for AES algorithm. However several previous studies have found the performance of rijndael algorithm on smartphones was under the other AES candidate algorithm such as serpent and twofish. This study compares the performance of rijndael, twofish, and serpent algorithms (the three major AES candidate algorithms) applied to smartphones. This study uses 3 devices with Android operating system and 3 devices with iOS operating system in the experiment. The experiments conducted in this study measure the performance of time, memory usage, and CPU percentage in the process of encryption and decryption performed using different key characters such as alphabet, numeric, alphanumeric, and alphanumeric and symbol. From 720 experiments conducted, this study found that serpent has the fastest time for encryption (0,025 ms) and decryption (0,022 ms). While the most efficient use of memory (0,032 KB) for encryption and decryption is done by twofish and rijndael. And the most efficient percentage of CPU usage (0,025 % for encryption and 0,038% for decryption) is done by serpent. The results of this experiment show that the performance of rijndael on smartphone is not better than other AES candidate algorithms, although the rijndael is the choosen AES algorithm
Rancang Bangun Aplikasi Pendataan Alumni SMA Negeri 6 Palembang Menggunakan CodeIgniter Ahmad Farisi; Sudiadi Sudiadi
JATISI (Jurnal Teknik Informatika dan Sistem Informasi) Vol 8 No 4 (2021): JATISI (Jurnal Teknik Informatika dan Sistem Informasi)
Publisher : Lembaga Penelitian dan Pengabdian pada Masyarakat (LPPM) STMIK Global Informatika MDP

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35957/jatisi.v8i4.1642

Abstract

In the journey of 40 years since the establishment of SMA Negeri 6 Palembang on 1981, there is a need of a media that can manages the alumni data which has been spreaded since the first generation until now. Therefore, this study designed an application to collect alumni data at SMA Negeri 6 Palembang. This study was conducted using a practical research methodology with research heuristics in the field of software engineering which answered the problem formulation by developing software based on a research perspective carried out at the pre-research stage. Meanwhile, system development is conducted using the Kanban method in the Agile Development approach. In the pre-research stage, this study collects data by conducting interviews regarding the needs of application development. This application is developed on a web platform with the CodeIgniter framework and its custom core system class. This application has 2 actors consisting of alumni and admin. The features are alumni data management which includes data, education, and occupation. This study conducted an evaluation to the application using the webuse method. The results show a usability value of 0.79 for alumni respondents and 0.76 for admin respondents. After being interpreted, the usability values show good predicates.
Analisis Kualitas Pengalaman Pengguna Sistem Pengelola Jurnal Menggunakan Metode User Experience Questionnaire Ahmad Farisi; Mardi Wicaksana
JATISI (Jurnal Teknik Informatika dan Sistem Informasi) Vol 9 No 3 (2022): JATISI (Jurnal Teknik Informatika dan Sistem Informasi)
Publisher : Lembaga Penelitian dan Pengabdian pada Masyarakat (LPPM) STMIK Global Informatika MDP

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35957/jatisi.v9i3.3328

Abstract

SIPENAMAS is a Research and Community Service System used by University MDP Lecturers to facilitate those who will submit and report research activities and community service. By using the UEQ method to measure the of the University MDP SIPENAMAS website. The purpose of the study was to determine and analyze the level of the University MDP SIPENAMAS website using the UEQ method. which consists of 6 variables, namely attractiveness, perpicuity, efficiency, dependability, stimulation, and novelty. The data collection process was carried out by distributing s to users of the University MDP SIPENAMAS Website, using a random sampling technique. In processing the data obtained using special software for the UEQ method. The results of the analysis with the UEQ are found that the value of the 6 scales, namely attractiveness 1.10, clarity 0.98, efficiency 0.88, accuracy 1.13, stimulation 0.92, and novelty 0.57 on the SIPENAMAS MDP website gets a score below average. Recommendations in this study are expected to provide consideration for improving on the SIPENAMAS MDP website.
Perbandingan Kinerja Algoritma Kandidat AES Dalam Enkripsi dan Dekripsi File Dokumen M Bima Putra Sansaya; Ahmad Farisi
MDP Student Conference Vol 2 No 1 (2023): The 2nd MDP Student Conference 2023
Publisher : Universitas Multi Data Palembang

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (352.681 KB) | DOI: 10.35957/mdp-sc.v2i1.4367

Abstract

File dokumen adalah salah satu bentuk informasi yang berharga sehingga diperlukan sistem keamanan untuk menjaga agar informasi didalamnya tidak dapat diakses oleh pihak yang tidak berwenang dengan kriptografi. Teknologi yang dapat menerapkan kriptografi adalah android yang dikenal memiliki mobilitas tinggi, dengan keterbatasan kinerja. Untuk itu dibutuhkan algoritma kriptografi dengan kinerja efisien untuk melakukan kriptografi file dokumen pada platform android. Penelitian ini bertujuan untuk membandingkan kinerja algoritma kriptografi Kandidat AES dalam enkripsi dan dekripsi file dokumen di perangkat android. Pengujian akan mengukur waktu, penggunaan memori, persentase CPU, ukuran file, kecepatan enkripsi, dan avalanche effect. Hasil pengujian menunjukkan waktu enkripsi tercepat adalah 196.51 ms, waktu dekripsi tercepat 204.04 ms, oleh Rijndael. Penggunaan memori peling efisien 1547.9 KB dan 1464.19 KB oleh Serpent. Persentase penggunaan CPU paling efisien 6.43% dan 4.28%, oleh Rijndael. Kecepatan enkripsi tertinggi 9825.68 KB/detik dan kecepatan dekripsi 9241.42 KB/detik oleh Rijndael. Rata-rata avalanche effect tertinggi 49.99% oleh algoritma Twofish.
Co-Authors M Bima Putra Sansaya Mardi Wicaksana Sudiadi Sudiadi