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All Journal Jurnal Teknologi Pendidikan CESS (Journal of Computer Engineering, System and Science) InfoTekJar : Jurnal Nasional Informatika dan Teknologi Jaringan Jurnal Penelitian Pendidikan IPA (JPPIPA) J-SAKTI (Jurnal Sains Komputer dan Informatika) JOURNAL OF SCIENCE AND SOCIAL RESEARCH JCRS (Journal of Community Research and Service) JURNAL PIONIR J-SAKTI (Jurnal Sains Komputer dan Informatika) Jurnal IPTEK Bagi Masyarakat Sistem Pendukung Keputusan dengan Aplikasi Jurnal INFOTEL Bigint Computing Journal
Adi Widarma, Adi
Universitas Negeri Medan
Agriculture, Biological Sciences & Forestry Humanities Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Decision Sciences, Operations Research & Management Economics, Econometrics & Finance Education Electrical & Electronics Engineering Energy Languange, Linguistic, Communication & Media Law, Crime, Criminology & Criminal Justice Materials Science & Nanotechnology Mechanical Engineering Physics Public Health Social Sciences Other

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Kombinasi Algoritma Simetri dan ECC untuk Meningkatkan Keamanan Pesan Widarma, Adi
InfoTekJar : Jurnal Nasional Informatika dan Teknologi Jaringan Vol 8, No 1 (2023): InfoTekJar September
Publisher : Universitas Islam Sumatera Utara

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30743/infotekjar.v8i1.9642

Abstract

Pengiriman atau pertukaran data adalah hal yang sering terjadi dalam dunia teknologi informasi. Apalagi pengiriman data dilakukan melalui layanan komunikasi dunia maya, ancaman kejahatan sangat banyak terjadi didalamnya. Untuk menjaga keamanan data, dapat  dilakukan dengan menggunakan teknik kriptografi.Banyak algoritma kriptografi yang digunakan untuk melakukan pengamankan pesan, tetapi kekuatan dari keamanan pesan tersebut masih lemah. Peningkatan keamanan pesan dan kunci dilakukan dengan algoritma hybrid. Metode hybrid dilakukan dengan mengkombinasikan algoritma simetri AES dengan OTP dengan algoritma ECC (Elliptic Curve Cryptograpy)  yaitu ECDH (Elliptic Curve Diffie-Hellman). Algoritma AES dan OTP digunakan untuk enkripsi dan dekripsi pesan sedangkan ECDH digunakan untuk menentukan dan pertukaran kunci nya sehingga akan semakin meningkatkan keamanan dari pesan.
Utilization of Grinding Machine Technology to Improve Shrimp Paste Production Capacity in Kecamatan Medan Belawan Maulana, Bagoes; Solihin, Muhammad Dani; Widarma, Adi; br Barus , Eviyona Laurenta; Dalimunthe, Amirhud
Journal of Community Research and Service Vol. 9 No. 1: January 2025
Publisher : Universitas Negeri Medan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24114/jcrs.v9i1.68389

Abstract

Located in Kelurahan Belawan I, Kecamatan Medan Belawan, Kampung Nelayan Lingkungan XII is a coastal area where the community primarily engages in fishing, boat rental services, and producing shrimp paste (terasi) from small shrimp (udang rebon). Observations and discussions with Kelompok Usaha Lestari, a local group dedicated to shrimp paste production, revealed that traditional methods, such as using mortars and pestles, are still prevalent. This manual process significantly limits production capacity and results in inconsistent product quality that deteriorates quickly over time. This Community Partnership Program (PKM) aims to address these issues by improving production efficiency and enhancing product quality through the integration of appropriate technology. The initiative includes the provision of a grinding machine tailored for processing small shrimp, training on product standardization, and continuous guidance to ensure effective use of the technology. The implementation of this technological solution has proven effective in increasing production capacity and ensuring higher consistency and quality of the shrimp paste. These improvements enable Kelompok Usaha Lestari to compete more effectively in the market and contribute to their long-term economic sustainability.
Implementasi Cloud Computing Menggunakan Nextcloud Berbasis Infrastructure as a Service (IaaS) Widarma, Adi; Siregar, Helmi Fauzi; Sitorus, Indi Ramadhani
CESS (Journal of Computer Engineering, System and Science) Vol. 9 No. 1 (2024): January 2024
Publisher : Universitas Negeri Medan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24114/cess.v9i1.55993

Abstract

Cloud Storage sendiri merupakan media penyimpanan yang dalam pengaksesan nya memerlukan jaringan internet. Jika suatu instansi melakukan penyimpanan data-data secara hardcopy yang disimpan dalam satu tempat penyimpanan. Maka, kegiatan tersebut akan menghasilkan sejumlah data yang banyak setiap harinya dalam periode tahunan penyimpanan yang baru yang akan menghabiskan dana yang tidak sedikit dan akan menambah limbah, dan apabila terjadi bencana hal yang ditakuti adalah masalah kehilangan data yang menjadi aset informasi tersebut. Teknologi penyimpanan data secara terpusat dengan cloud storage menjadi salah satu jawaban permasalahan diatas, berbeda dengan layanan cloud storage yang sering digunakan pada umumnya seperti google drive. Untuk memudahkan dalam pengaksesan data dalam sebuah instansi maka dibutuhkan suatu strategi sentralisasi data yang dapat diakses dan berbagi data secara bersama dengan biaya yang lebih ekonomis dengan tidak perlu dikenakan biaya tambahan. Dalam penelitian ini cloud computing akan dibangun menggunakan Nextcloud dengan sistem operasi Ubuntu server. Berdasarkan penelitian yang dilakukan maka diambil kesimpulan bahwa Nextcloud telah berhasil diinstall dan digunakan. Nextcloud yang digunakan adalah versi 16.03 yang diinstall pada sistem operasi Linux Ubuntu Server 18.04. Pemanfaatan Nexcloud merupakan teknologi cloud computing berbasis Infrastructure as a Service (IaaS) dengan model Private Cloud artinya nextcloud hanya bisa diakses secara local pada instansi tersebut. Pengujian sistem dengan beberapa skenario pengujian menggunakan metode black box testing dengan melakukan proses upload, download dan sharing data. Pengujian dari ketiga proses tersebut menghasilkan kesimpulan yang valid.
Innovation in the Development of Learning Animation Videos Through the Powtoon App in the Learning Design Course K, Abdul Hamid; Marlan; Widarma, Adi
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.
Co-Authors Agnes Irene Silitonga Aisah, Nurkosrina Alfahri, Dio Azril Ali Akbar Lubis Ali Ikhwan Aliana A. Raof, Raflikha Amirhud Dalimunthe Annida Damanik, Ulfa Eviyona Laurenta Br Barus Halimul Bahri Helmi Fauzi Siregar Irawan, M Dedi K, Abdul Hamid Lubis, Zul Fadli Ma'ruf Batu Bara, Qothrun Nada Marlan Maulana, Bagoes Muhammad Dani Solihin Muhammad Dedi Irawan Nursyahvira, Nursyahvira Oris Krianto Sulaiman Rahma Dewi, Eka Sitorus, Indi Ramadhani Umniati, Naila Yudhistira Anggraini, Yudhistira Yustria Handika Siregar Yusuf, Muhammad Reza Khatami