Article Per Year (5 Year)
p-Index From 2021 - 2026
1.182
P-Index
This Author published in this journals
All Journal Techno.Com: Jurnal Teknologi Informasi JOURNAL OF APPLIED INFORMATICS AND COMPUTING Martabe : Jurnal Pengabdian Kepada Masyarakat Journal Of Information And Technology Unimor (JITU) ADMA: Jurnal Pengabdian dan Pemberdayaan Masyarakat Dulang: Jurnal Pengabdian Kepada Masyarakat JEECS (Journal of Electrical Engineering and Computer Sciences)
Bagas Dwi Yulianto
Unknown Affiliation
Agriculture, Biological Sciences & Forestry Arts Humanities Computer Science & IT Control & Systems Engineering Education Electrical & Electronics Engineering Engineering Industrial & Manufacturing Engineering Languange, Linguistic, Communication & Media Nursing Social Sciences Other

Published : 7 Documents Claim Missing Document
Claim Missing Document
Check
Articles

Found 7 Documents
Search

 1 
Verifikasi Quick Response Code dengan Vigenere Cipher dan Multi-Factor RSA Yulianto, Bagas Dwi; Hadi, Said Hirzi
Techno.Com Vol. 24 No. 1 (2025): Februari 2025
Publisher : LPPM Universitas Dian Nuswantoro

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.62411/tc.v24i1.12192

Abstract

Data personal merupakan hal yang sensitif bagi pemiliknya. Kelalaian dari penggunaan teknologi terkini seperti QR Code yang kurang tepat dapat mengakibatkan kebocoran data atau informasi. Pada hakikatnya QR Code hanya mengubah informasi menjadi gambar dua dimensi yang pembacaannya menggunakan sistem pindai, sehingga informasi yang didalamnya belum terlindungi dan informasi tersebut dapat langsung dibaca oleh semua orang. Penelitian ini berfokus pada kombinasi kriptografi simetris Vigenere Cipher serta kriptografi asimetris RSA yang ditingkatkan lagi menjadi Multi-factor RSA. Kombinasi tersebut untuk meningkatkan keamanan suatu informasi/data sebelum dirubah menjadi QR Code. Metode yang diusulkan membuktikan bahwa QR Code yang dipindai langsung dari berbagai perangkat akan menghasilkan kode enkripsi sehingga pihak tidak bertanggungjawab tidak dapat membaca nilai pesan asli. Pesan asli hanya bisa dibaca dari dari scanner dengan metode yang diusulkan sehingga keamanan QR Code terverifikasi. Serta hasil uji dengan Avalanche effect memenuhi standar baik dengan nilai 53,671875%.   Kata kunci: QR Code, Vigenere Cipher, Multi-factor RSA
Enhancing the Encryption Capabilities of the Generalization of the ElGamal Algorithm for Document Security Zega, Imanuel; Yulianto, Bagas Dwi
Journal of Applied Informatics and Computing Vol. 9 No. 4 (2025): August 2025
Publisher : Politeknik Negeri Batam

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30871/jaic.v9i4.9737

Abstract

The development of cryptographic algorithms that are efficient in terms of computation and resource usage, in addition to maintaining the confidentiality, integrity, and authentication of information, is driven by the growing need for digital document security. The generalization of the ElGamal, an expansion of the traditional ElGamal algorithm with more adaptable encryption features, is one algorithm with a lot of promise in this situation. The implementation of the technique of splitting the plaintext into three-digit blocks to lower the complexity of encryption per character and the use of large prime numbers to increase the algorithm's mathematical complexity are the two main ways that this study seeks to increase the algorithm's efficiency and security. It is anticipated that this method will speed up computation time and simplify the encryption process per character without compromising security. The overall findings demonstrate that, without compromising security, this method dramatically cuts down on computation time and ciphertext enlargement. Therefore, in the age of digital transformation, the findings of this study aid in the creation of contemporary cryptographic algorithms that are more flexible and effective and serve as a strategic guide when creating a strong digital data security system.
EDUKASI PENGENALAN TEKNOLOGI INFORMASI DAN KOMPUTER PADA SISWA SDN 1 TRAYU BOYOLALI Praningki, Tutus; Yulianto, Bagas Dwi; Anggiratih, Endang
Jurnal Pengabdian Masyarakat Polmanbabel Vol. 5 No. 02 (2025): DULANG : Jurnal Pengabdian Kepada Masyarakat
Publisher : Pusat Penelitian dan Pengabdian Kepada Masyarakat

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33504/dulang.v5i02.617

Abstract

The increasingly significant role of Information Technology (IT) is expected to have a positive impact on various aspects of life. Therefore, it is essential for young children to learn IT effectively. However, the lack of opportunities for children to develop their potential in using computer applications poses a barrier to enhancing their technological skills. As a concrete step, this community service program focuses on IT education for students at SD Negeri Trayu 1 Banyudono. The aim of this program is to improve students' knowledge and skills in learning computer software, particularly Microsoft Word and Microsoft PowerPoint, as well as to introduce them to computer hardware, thereby equipping them with the necessary tools to effectively utilize technology in the future.
The Expert System for Determining Manual Brew Coffee Techniques and Coffee Beans Using the Forward Chaining Method Fajarlestari, Maria Karmelia; Dwi Yulianto, Bagas
Journal of Information and Technology Vol. 4 No. 2 (2024): Journal of Information and Technology Unimor (JITU)
Publisher : Department of Information Technology, Universitas Timor, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32938/jitu.v4i2.7761

Abstract

An expert system for determining coffee types and brewing techniques was developed using the forward chaining method. All related data, including coffee types, brewing techniques, and coffee flavors and characteristics, were collected. From this data, rules were created for the decision-making process. The decisions made in these rules are derived from expert knowledge. The expert in this research is a barista who works as a coffee maker. The decision-making process is expressed in the form of IF(condition)-ELSE(action). The condition represents the initial facts, consisting of data used in the decision-making process, namely coffee flavors and characteristics. The action represents the conclusion, which is the result: the brewing technique to be used based on the coffee's characteristics and the recommended coffee types based on the coffee flavors. Therefore, this expert system will recommend brewing techniques and coffee types according to the desired coffee flavors and characteristics.
Digitalisasi Akuntansi dan Pemasaran: Langkah Strategis Peningkatan Omset dan Branding Lempeng Petani Singkong Wonogiri Widiyaningsih, Vitalis Ari; Dwiyani, Titik; Yulianto, Bagas Dwi
ADMA : Jurnal Pengabdian dan Pemberdayaan Masyarakat Vol. 6 No. 2 (2025): ADMA: Jurnal Pengabdian dan Pemberdayaan Mayarakat: In-Progress
Publisher : LPPM Universitas Bumigora

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30812/adma.v6i2.5709

Abstract

Kelompok Tani Makaryo Tani di Dusun Cengklok, Kecamatan Ngadirojo, Kabupaten Wonogiri, memiliki potensi unggulan berupa produk olahan lempeng singkong. Permasalahan utama mitra meliputi proses produksi manual, keterbatasan strategi pemasaran, belum optimalnya pencatatan biaya, serta keterbatasan legalitas dan branding produk. Melalui pendekatan community development, program ini berfokus pada pemanfaatan potensi lokal yang telah ada dengan intervensi teknologi dan pelatihan. Kegiatan yang dilakukan meliputi pendampingan perhitungan harga pokok produksi, pelatihan pemasaran digital  melalui  media  sosial  dan  website,  penguatan  branding  dengan  desain  kemasan dan stiker, serta fasilitasi legalitas berupa sertifikasi Halal. Selain itu, bantuan mesin produksi diberikan untuk meningkatkan efisiensi dan konsistensi kualitas produk. Hasil program menunjukkan adanya peningkatan kapasitas mitra dalam manajemen usaha, pemasaran digital, serta legalitas produk.  Pembentukan organisasi dengan branding Lempi-Go dan serah terima teknologi menjadi bentuk keberlanjutan program agar mitra mampu mengelola usaha secara mandiri.  Dengan demikian, PkM ini berhasil mendorong transformasi usaha tradisional menuju agribisnis berbasis digital yang lebih kompetitif dan berkelanjutan.
SmartNotes Encrypted with Hybrid Cryptography Combining Rivest Cipher 4 and XChaCha20 Kusuma, Elizabeth Piscelia; Naysilla, Aqeela Nashwa; Yulianto, Bagas Dwi
JEECS (Journal of Electrical Engineering and Computer Sciences) Vol. 10 No. 2 (2025): JEECS (Journal of Electrical Engineering and Computer Sciences)
Publisher : Fakultas Teknik Universitas Bhayangkara

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.54732/jeecs.v10i2.5

Abstract

Digital note-taking applications serve as essential tools for personal information management, presenting opportunities for enhanced security mechanisms to protect sensitive data. Most current solutions depend on server-side processing, creating potential vulnerabilities and privacy concerns. However, a robust solution that fully executes hybrid encryption on the client-side to seamlessly protect both text and image data within a single application remains unexplored. This study introduces SmartNotes, a web-based application safeguarding text and image notes through an innovative hybrid encryption system synergistically combining RC4 and XChaCha20 algorithms. A key contribution is the full client-side execution of encryption–decryption processes, eliminating server dependencies and significantly reinforcing data confidentiality. The hybrid design strategically utilizes RC4 for rapid data processing and XChaCha20 for robust cryptographic protection, creating an optimal balance between performance and security.  System performance was rigorously evaluated using seven private datasets under diverse key conditions. Testing methodology included comprehensive assessment of processing speed, data integrity verification, and resistance against unauthorized access attempts. Results demonstrated flawless data restoration across all test cases, validating robustness and reliability. Encryption averaged 1.5 seconds, while decryption required 20.20 seconds metrics well-suited for practical web environments. These findings affirm SmartNotes delivers a secure, autonomous, user-centric solution for digital note management, advancing applied cryptography through a novel client-side hybrid encryption paradigm. This approach successfully balances strong security with practical performance, making it suitable for securing data in everyday web applications.
PENERAPAN PERANGKAT LUNAK PYTHON UNTUK MENINGKATKAN KOMPETENSI ANALISIS DATA DALAM KEGIATAN RISET MAHASISWA Dwi Setiawan, Very; Utari Iswavigra, Dwi; Ulfa, Mutia; Anggiratih, Endang; Dwi Yulianto, Bagas; Praningki, Tutus; Suyahman, Suyahman; Wicaksono, Ardy; Mar'atullatifah, Yulaikha; Prasetyo, Deny; Mursalim, Mursalim
Martabe : Jurnal Pengabdian Kepada Masyarakat Vol 9, No 2 (2026): MARTABE : JURNAL PENGABDIAN KEPADA MASYARAKAT
Publisher : Universitas Muhammadiyah Tapanuli Selatan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31604/jpm.v9i2.%p

Abstract

Perkembangan teknologi informasi menuntut mahasiswa memiliki kompetensi analisis data yang memadai untuk mendukung kegiatan riset akademik. Namun, kenyataannya masih banyak mahasiswa yang mengalami keterbatasan dalam pemanfaatan perangkat lunak analisis data berbasis komputasi dan cenderung bergantung pada aplikasi spreadsheet sederhana. Kegiatan Pengabdian kepada Masyarakat ini bertujuan untuk meningkatkan kompetensi analisis data mahasiswa melalui penerapan perangkat lunak Python dalam kegiatan riset. Pelatihan dilaksanakan di Universitas Islam Batik Surakarta melalui kolaborasi antara Program Studi Teknik Industri Universitas Batik Surakarta dan Program Studi Teknik Industri Universitas Nahdlatul Ulama Jepara. Metode yang digunakan adalah pelatihan berbasis praktik langsung (hands-on training) yang meliputi pengenalan dasar pemrograman Python, pengolahan dan preprocessing data, serta visualisasi data penelitian menggunakan pustaka Pandas, NumPy, Matplotlib, dan Seaborn. Evaluasi kegiatan dilakukan melalui pre-test dan post-test untuk mengukur peningkatan kompetensi peserta. Hasil evaluasi menunjukkan peningkatan yang signifikan pada seluruh aspek kompetensi, termasuk pemahaman konsep dasar Python, kemampuan pengolahan dan pembersihan data, keterampilan visualisasi data, serta pemanfaatan Python dalam penyusunan laporan penelitian. Peningkatan nilai post-test yang lebih tinggi dibandingkan pre-test mengindikasikan bahwa pendekatan pelatihan yang diterapkan efektif dalam meningkatkan literasi komputasional dan kualitas analisis data mahasiswa. Kegiatan ini berkontribusi positif terhadap peningkatan mutu riset mahasiswa serta mendorong pemanfaatan perangkat lunak open-source dalam lingkungan akademik. Pelatihan ini juga berpotensi menjadi model Pengabdian kepada Masyarakat yang berkelanjutan dalam pengembangan kompetensi analisis data di perguruan tinggi.
Co-Authors Anggiratih, Endang dwiyani, titik Hadi, Said Hirzi Imanuel Zega Kusuma, Elizabeth Piscelia Mar'atullatifah, Yulaikha Maria Karmelia Fajarlestari Mursalim Mursalim Naysilla, Aqeela Nashwa Prasetyo, Deny setiawan, very dwi Suyahman Suyahman Tutus Praningki ulfa, mutia Utari Iswavigra, Dwi Wicaksono, Ardy Widiyaningsih, Vitalis Ari