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KOMBINASI ALGORITMA AES, RC4 DAN ELGAMAL DALAM SKEMA HYBRID UNTUK KEAMANAN DATA Adi Widarma
CESS (Journal of Computer Engineering, System and Science) Vol 1, No 1 (2016): Januari 2016
Publisher : Universitas Negeri Medan

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (9.373 KB) | DOI: 10.24114/cess.v1i1.4040

Abstract

Abstrak — Pengiriman atau pertukaran data adalah hal yang sering terjadi dalam dunia teknologi informasi. Data yang dikirim kadang sering berisi data informasi yang penting bahkan sangat rahasia dan harus dijaga keamanannya. Untuk menjaga keamanan data, dapat dilakukan dengan menggunakan teknik kriptografi. Algoritma AES dan RC4 adalah salah satu dari algoritma simetri. Kelemahan dari algoritma simetri adalah proses enkripsi dan dekripsi menggunakan kunci yang sama. Untuk mengatasi tersebut dilakukan dengan menggunakan algoritma Elgamal. Algoritma Elgamal adalah termasuk algoritma asimetri. Algoritma Elgamal  digunakan untuk mengamankan kunci dari algoritma AES dan RC4. Peningkatan keamanan pesan dan kunci dilakukan dengan algoritma hybrid. Algoritma hybrid dengan mengkombinasikan beberapa algoritma baik algoritma simetri maupun algortima asimetri akan menambah keamanan sehingga menjadi lebih aman dan powerful (Jain & Agrawal 2014). Penelitian ini akan dilakukan metode hybrid yaitu mengkombinasikan beberapa algoritma kriptografi dengan menggunakan algoritma Advanced Encryption Standard (AES) dan RC4 untuk kerahasiaan data serta algoritma Elgamal digunakan untuk enkripsi dan dekripsi kunci.Kata Kunci :  kriptograpi, algoritma AES, RC4, Elgamal, hybrid
Perancangan Sistem Informasi Inventori Menggunakan Framework for Systems Thinking Applications Zul Fadli Lubis; Adi Widarma
Jurnal IPTEK Bagi Masyarakat Vol 3 No 3 (2024)
Publisher : Ali Institute of Research and Publication

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55537/jibm.v3i3.811

Abstract

Penelitian ini bertujuan untuk merancang dan membangun Sistem Informasi Inventarisasi Alat Tulis Kantor dan Souvenir pada Kantor Pelayanan Pratama Pajak Medan Petisah, meminimalisir duplikasi data dan pengambilan data yang lebih cepat, memudahkan proses input data dan pelaporan. Penelitian ini menggunakan metode FAST (Framework for the application of system thinking) Metode FAST merupakan metode pengembangan sistem, yang merupakan kombinasi dari beberapa metode pengembangan sistem yang banyak digunakan, disajikan dalam kerangka kerja yang fleksibel, dan dapat dikembangkan dengan metode lain, perancangan sistem menggunakan Unified Modeling Language atau UML (use case, Activity diagram, sequence diagram dan class diagram),. Hasil dari penelitian adalah Sistem Informasi Inventarisasi Alat Tulis Kantor Dan Souvenir Pada Kantor Pelayanan Pratama Pajak Medan petisah, dilengkapi dengan menu login dengan level user yang berbeda-beda, menu utama berisi pilihan antara lain ATK dan Souvenir, dari menu tersebut mempunyai transaksi yang terdiri dari pengambilan barang, pembelian barang, hibah kantor wilayah, stok barang dan laporan sehingga memberikan manfaat kepada Kantor Pelayanan Pajak Pratama Medan Petisah.
Innovation in the Development of Learning Animation Videos Through the Powtoon App in the Learning Design Course Abdul Hamid K; Marlan; Adi Widarma
Jurnal Penelitian Pendidikan IPA Vol 11 No 5 (2025): May
Publisher : Postgraduate, University of Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jppipa.v11i5.10880

Abstract

The learning process for the Learning Design course in the Unimed Building Engineering Education Department (JPTB) has so far only been carried out with a presentation or lecture strategy, where students are more passive and only act as good listeners so that the expected learning objectives and competencies are not achieved. In addition, the implementation of the KKNI-based Merdeka Learning Campus (MBKM) based curriculum requires students to produce learning products. Therefore, to improve students' abilities in Learning Design learning, it is always necessary to change or innovate continuously so that they can achieve the learning objectives that have been set determined, one of which is the ability to develop Video Animation which is not only influenced by the learning model but also the application used. The proposed research aims to produce Learning Video Animations to improve student competence. Advances in information and communication technology have made learning animation videos visible using the Powton application learning can contain the same information as printed textbooks and can insert teaching materials not only in text form, it can be in the form of animation, audio or video and can be stored on CDs, flash discs, computers and smartphones so it doesn't take up a lot of space and carry it more easily, easier than a textbook. On the basis of the above, research will be carried out on the innovation of developing Powton animation videos in the Learning Design course with the aim of knowing the Feasibility of Learning Animation Videos using the Powtoon Application in the Learning Design course. How is Student Response to Learning Animation Videos using the Powtoon Application in the Learning Design course. The learning device development model used in this study is the 4-D Thiagarajan model (1974). This development model consists of 4 stages of development, namely: Define; Design, Develop, and Disseminate. Feasibility of Video Animation is done by asking for expert reviews. Materials, learning media experts and learning design experts. The effectiveness of using the Powton application is from the results of the pretest and post test results of student learning taking the learning design course. The expected results or outputs of this study are: produce learning, animation teaching material products using applications that can be applied to improve students' abilities in learning design materials; and produce scientific publications, both in the form of Seminar Proceedings and international journals about the use of teaching materials to improve skills in the Learning Design course.