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All Journal JOURNAL OF INFORMATICS AND TELECOMMUNICATION ENGINEERING Jurnal Pengabdian Masyarakat Bangsa Journal of Technology and Computer (JOTECHCOM)
Rambe, Basyit Mubarroq
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Agriculture, Biological Sciences & Forestry Arts Humanities Civil Engineering, Building, Construction & Architecture Computer Science & IT Economics, Econometrics & Finance Education Energy Engineering Health Professions Industrial & Manufacturing Engineering Law, Crime, Criminology & Criminal Justice Mathematics Medicine & Pharmacology Nursing Physics Public Health Social Sciences

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Performance Analysis Of The Combination Of Blum Blum Shub And Rc5 Algorithm In Message Security Rambe, Basyit Mubarroq; Nababan, Erna Budhiarti; Nasution, Mahyuddin KM
JOURNAL OF INFORMATICS AND TELECOMMUNICATION ENGINEERING Vol. 7 No. 2 (2024): Vol. 7 No. 2 (2024): Issues January 2024
Publisher : Universitas Medan Area

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31289/jite.v7i2.10937

Abstract

This research aims to enhance message security in the RC5 algorithm by integrating it with the Blum Blum Shub (BBS) algorithm. The rapid growth in data and information exchange, driven by advancements in information and communication technology, demands robust security against attacks such as eavesdropping, interruption, and data modification. Cryptography, particularly with symmetric and asymmetric keys, becomes a solution to maintain message confidentiality. The RC (Rivest Cipher) algorithm, specifically RC5, has become a popular choice in network applications due to its speed and variable key length complexity. This study attempts to improve the quality of encryption keys by integrating the Blum Blum Shub (BBS) method, a mathematical random number generator algorithm. RC5 and BBS are used together to secure messages, producing ciphertext that is difficult to predict and smaller in file size compared to the standard RC5 method. The test results show that the processing speed is independent of the number of characters in the plaintext, while the encrypted file size resulting from the RC5-BBS combination is more efficient than using the default RC5. In conclusion, integrating BBS into RC5 can enhance the security and efficiency of the encryption algorithm, with the potential for widespread application in cryptography-based data security
Edukasi Perancangan Alat Berbasis IoT Pada SMK Yapim Perdagangan Santoso, Ahmad Imam; Rambe, Basyit Mubarroq; Eriyanto, Joko; Tembusai, Zoelkarnain Rinanda; Santoso, Laina Tussifah; Gultom, Karyawaty
Jurnal Pengabdian Masyarakat Bangsa Vol. 3 No. 5 (2025): Juli
Publisher : Amirul Bangun Bangsa

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.59837/jpmba.v3i5.2708

Abstract

Mata Pelajaran Teknologi Informasi dan Komunikasi merupakan mata pelajaran wajib untuk siswa siswi SMK Yapim Perdagangan. Namun, berdasarkan hasil wawancara tim Pengabdian Kepada Masyarakat (PKM) kepada pihak sekolah, siswa siswi pada SMK Yapim Perdagangan belum mendapatkan edukasi yang cukup mengenai bidang ilmu Internet of Things (IoT). Sehingga kegiatan edukasi mengenai IoT perlu untuk dilakukan. Kegiatan PKM ini dirancang dalam bentuk seminar atau ceramah dan akan diselenggarakan di lingkungan sekolah tersebut, dengan estimasi durasi pelaksanaan selama tiga jam. Waktu pelaksanaan kegiatan dilaksanakan pada bulan Mei 2025. Adapun hasil yang diharapkan dari kegiatan ini adalah meningkatnya pemahaman warga sekolah, khususnya siswa dan tenaga pendidik, mengenai konsep dasar serta implementasi teknologi Internet of Things.
Sentiment Analysis On Police Brigadier Shooting Case Using K-Means Clustering Wahyuni , Masri; Rambe, Basyit Mubarroq; Br Tarigan , Yuni Franciska; Gultom , Karyawaty
Journal of Technology and Computer Vol. 1 No. 2 (2024): May 2024 - Journal of Technology and Computer
Publisher : PT. Technology Laboratories Indonesia (TechnoLabs)

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Abstract

As a medium that can be used to convey public criticism and aspirations in real time, Twitter is used as a data collection source using crawling techniques, to analyze public sentiment or response to the police brigadier shooting case. Latent dirichlet al-location (LDA) is used to determine the topics that appear in each of the collected tweets, and then used as a feature in grouping the contents of the tweets based on their respective sentiment values. The results of clustering using the k-means clustering algorithm obtained are: 11.9% of netizens gave a positive response, 18.9% of netizens gave a neutral response and 69.2% of netizens gave a negative response to the case. Thus, from the results of this study it can be concluded that netizens tend to give a negative response or reaction to the police brigadier shooting case, when viewed from the percentage of each type of response.
Pelatihan Service Laptop Ringan Untuk Murid SMK Satria Budi 2 Perdagangan Santoso, Ahmad Imam; Rambe, Basyit Mubarroq; Santoso, Laina Tussifah; Gultom, Karyawaty; Tembusai, Zoelkarnain Rinanda
Jurnal Pengabdian Masyarakat Bangsa Vol. 3 No. 12 (2026): Februari
Publisher : Amirul Bangun Bangsa

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.59837/jpmba.v3i12.3990

Abstract

Kegiatan pengabdian kepada masyarakat ini bertujuan untuk mengenalkan teknik dasar perawatan dan perbaikan laptop yang ditujukan untuk murid sekolah tingkat SMK. Kegiatan dilaksanakan di SMK Satria Budi 2 Perdagangan pada tanggal Oktober 2025 dan dihadiri oleh 25 murid kelas XII. Metode pelaksanaan berupa seminar dan praktik langsung dalam melakukan perawatan dan perbaikan laptop dengan jumlah waktu maksimal 90 menit untuk setiap sesi. Adapun hasil yang diharapkan dari kegiatan ini adalah meningkatkan pemahaman dan kesadaran warga sekolah, khususnya siswa dan tenaga pendidik, mengenai konsep dasar dalam melakukan perawatan dan perbaikan skala ringan pada perangkat teknologi informasi.
Co-Authors Br Tarigan , Yuni Franciska Eriyanto, Joko Erna Budhiarti Nababan Gultom , Karyawaty Gultom, Karyawaty Mahyuddin K. M Nasution Santoso, Ahmad Imam Santoso, Laina Tussifah Tembusai, Zoelkarnain Rinanda Wahyuni , Masri