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Message Security Application Using Mobile-Based AES Algorithm Rifki, Mhd Ikhsan; Syamia, Nanda
Journal of Computer Science, Information Technology and Telecommunication Engineering Vol 5, No 2 (2024)
Publisher : Universitas Muhammadiyah Sumatera Utara, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30596/jcositte.v5i2.20834

All information in data exchange transactions on communication networks travels through the network infrastructure. The network infrastructure sends various types of data, including text, images, and documents with various extensions. These documents may be private and confidential. Therefore, it is crucial to have a message security option that is not only user-friendly but also has a high level of security system complexity. The purpose of this research is to build a text message security system using the Advanced Encryption Standard (AES) algorithm on mobile devices. We can utilize it as a security solution to safeguard text messages received through mobile devices. The AES security algorithm is known to have reliability in processing data encryption and decryption. The research will describe components such as the design, implementation, and analysis of application requirements. Important features include encryption, decryption, and key management in addition to an easy-to-use UI. The research findings show that this program successfully secures text messages while maintaining the confidentiality and integrity of the data sent. Additionally, we adjusted the application's parameters to align with mobile device standards, ensuring consistent encryption and decryption procedures that users can easily operate. For application testing, we use the black box testing method to ensure that the design and application function as intended, adhere to security regulations, and provide a positive user experience. This study's results suggest that AES-based mobile messaging security applications can serve as a tool to fulfill the secure communication expectations of mobile users.

SENTIMENT ANALYSIS ON THE CHANGE OF COACH OF THE INDONESIAN NATIONAL TEAM USING SUPPORT VECTOR MACHINE ALGORITHM Syamia, Nanda; Furqan, Mhd.
Jurnal Multimedia dan Teknologi Informasi (Jatilima) Vol. 7 No. 02 (2025): Jatilima : Jurnal Multimedia Dan Teknologi Informasi
Publisher : Cattleya Darmaya Fortuna

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.54209/jatilima.v7i02.1510

The change in the coach of the Indonesian national team has ignited a range of public responses on social media, particularly on the X platform (formerly Twitter). This research intends to examine public opinion regarding the firing of coach Shin Tae-yong and the hiring of Patrick Kluivert through the Support Vector Machine (SVM) algorithm. A dataset of 1,000 public comments was gathered via crawling methods from the @timnasindonesia account, subsequently classified as either positive or negative sentiment using a lexicon-based technique. The stages of the research involved text preprocessing (cleaning, tokenization, stemming, and stopword elimination), word weighting through TF-IDF, and sentiment classification with the SVM algorithm. Initial findings indicated a classification accuracy of 77%, which rose to 83% following upsampling to rectify class imbalance. The evaluation of the model utilized a confusion matrix, resulting in high precision, recall, and F1-score metrics. This research shows that SVM is successful in categorizing public sentiment on particular social matters and can serve as a data-informed decision-making resource. These findings further enhance understanding of public views on strategic policies within national sports, especially football.

Web-Based Document Archiving Information System In Commission C DPRD Of North Sumatra Province Syamia, Nanda; Lubis, Amalina Shadrina; Nur Hera Zabni; Rifqi, Mhd Ikhsan
SAINTEKBU Vol. 16 No. 01 (2024): Vol. 16 No. 01 January 2024
Publisher : KH. A. Wahab Hasbullah University

Show Abstract | Download Original | Original Source | Check in Google Scholar

Commission C DPRD of North Sumatra Province is a commission that operates in the financial sector. In Commission C DPRD, the relationship between the budget and documents is closely related because documents are often used as a tool to record, track and present financial information. These documents assist Commission C in monitoring, evaluating and making decisions related to regional financial management. The document is an important reference to ensure transparency, accountability and efficiency of budget management in accordance with policies and community needs. The existence of documents is usually important because they record or record information that can be accessed and used as a reference in the future. Document management within Commission C DPRD of North Sumatra province still faces several obstacles, including manual processes that are vulnerable to human error, the time required to search for documents, and the risk of document loss or damage. Seeing this problem, a new system is needed that utilizes technology in the current era to deal with several obstacles related to document management. The aim is to design and implement a web-based document archiving information system at Commission C DPRD of North Sumatra province to increase efficiency, security and readability of information in document management. The research methods used in this study are Research and Development. Research and Development Research and development (R&D). This system was built by modeling several UML diagrams such as use case diagrams, activity diagrams, and class diagrams. It is hoped that Commission C DPRD of North Sumatra province can optimize document management performance and make a positive contribution to improving service quality and transparency within this institution.

PERAN FESTIVAL ANAK SHOLEH ANTAR DUSUN DALAM MENINGKATKAN PENTINGNYA MODERASI BERAGAMA PADA GENERASI MUDA Anggraini, Dwi; Fitri, Raehanun Aisyah; Syamia, Nanda; Budhiawan, Adlin; Almanda, Rico
Community Development Journal : Jurnal Pengabdian Masyarakat Vol. 5 No. 5 (2024): Vol. 5 No. 5 Tahun 2024
Publisher : Universitas Pahlawan Tuanku Tambusai

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31004/cdj.v5i5.34615

Kuliah Kerja Nyata (KKN) Universitas Islam Negeri Sumatera Utara di Desa Durian, Kecamatan Medang Deras, Kabupaten Batubara, melaksanakan program "Festival Anak Sholeh" pada 11 Agustus 2024. Program ini bertujuan untuk menanamkan nilai-nilai agama, kebaikan, dan moral pada anak-anak melalui kegiatan edukatif. Festival ini mencakup lomba adzan subuh, hafalan surah pendek, dan pidato, dengan 35 peserta dari tingkat SD dan SMP. Selain perlombaan, acara juga diisi dengan ceramah mengenai moderasi beragama. Penelitian ini menggunakan metode kualitatif untuk memahami dampak festival terhadap pengembangan potensi anak dan moderasi beragama. Hasilnya menunjukkan bahwa festival ini tidak hanya mengasah keterampilan agama anak-anak tetapi juga mempromosikan toleransi dan keseimbangan dalam beragama. Festival ini berperan penting dalam memperkuat hubungan antara keluarga, sekolah, dan komunitas dalam mendukung pertumbuhan anak secara menyeluruh.

Web-Based Document Archiving Information System In Commission C DPRD Of North Sumatra Province Syamia, Nanda; Lubis, Amalina Shadrina; Nur Hera Zabni; Rifqi, Mhd Ikhsan
SAINTEKBU Vol. 16 No. 01 (2024): Vol. 16 No. 01 January 2024
Publisher : KH. A. Wahab Hasbullah University

Show Abstract | Download Original | Original Source | Check in Google Scholar

Commission C DPRD of North Sumatra Province is a commission that operates in the financial sector. In Commission C DPRD, the relationship between the budget and documents is closely related because documents are often used as a tool to record, track and present financial information. These documents assist Commission C in monitoring, evaluating and making decisions related to regional financial management. The document is an important reference to ensure transparency, accountability and efficiency of budget management in accordance with policies and community needs. The existence of documents is usually important because they record or record information that can be accessed and used as a reference in the future. Document management within Commission C DPRD of North Sumatra province still faces several obstacles, including manual processes that are vulnerable to human error, the time required to search for documents, and the risk of document loss or damage. Seeing this problem, a new system is needed that utilizes technology in the current era to deal with several obstacles related to document management. The aim is to design and implement a web-based document archiving information system at Commission C DPRD of North Sumatra province to increase efficiency, security and readability of information in document management. The research methods used in this study are Research and Development. Research and Development Research and development (R&D). This system was built by modeling several UML diagrams such as use case diagrams, activity diagrams, and class diagrams. It is hoped that Commission C DPRD of North Sumatra province can optimize document management performance and make a positive contribution to improving service quality and transparency within this institution.

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