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All Journal snimed Jurnal Teknoin Jurnal Teknik Khazanah Informatika: Jurnal Ilmu Komputer dan Informatika Register: Jurnal Ilmiah Teknologi Sistem Informasi JOIN (Jurnal Online Informatika) Sistemasi: Jurnal Sistem Informasi Jurnal RESTI (Rekayasa Sistem dan Teknologi Informasi) JMM (Jurnal Masyarakat Mandiri) JURNAL TEKNIK INFORMATIKA DAN SISTEM INFORMASI IJISTECH (International Journal Of Information System & Technology) Journal of Appropriate Technology for Community Services Cyber Security dan Forensik Digital (CSFD) JATI (Jurnal Mahasiswa Teknik Informatika) MDJ (Makassar Dental Journal) JIIP (Jurnal Ilmiah Ilmu Pendidikan) Jurnal Sistem Komputer dan Informatika (JSON) Automata JURNAL PENDIDIKAN, SAINS DAN TEKNOLOGI Journal of Computer Networks, Architecture and High Performance Computing IJISTECH International Journal of Computer and Information System (IJCIS) JITSI : Jurnal Ilmiah Teknologi Sistem Informasi Journal of Social Science IJoICT (International Journal on Information and Communication Technology)
Ramadhani, Erika
Universitas Islam Indonesia
Humanities Chemical Engineering, Chemistry & Bioengineering Chemistry Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Decision Sciences, Operations Research & Management Dentistry Education Electrical & Electronics Engineering Engineering Environmental Science Immunology & microbiology Industrial & Manufacturing Engineering Law, Crime, Criminology & Criminal Justice Library & Information Science Materials Science & Nanotechnology Mathematics Mechanical Engineering Physics Social Sciences Other

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Forensic Web Analysis on The Latest Version of Whatsapp Browser Utomo, Dicky Satrio Ikhsan; Prayudi , Yudi; Ramadhani, Erika
Journal of Computer Networks, Architecture and High Performance Computing Vol. 5 No. 1 (2023): Article Research Volume 5 Issue 1, January 2023
Publisher : Information Technology and Science (ITScience)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.47709/cnahpc.v5i1.2286

Abstract

With the rapid growth of technology and the increasing number of smartphone users, social media applications have proliferated. Among them, WhatsApp has emerged as the most widely used application, with over a quarter of the world's population using it since 2009. To meet the increasing customer demands, WhatsApp has introduced a browser version, which has undergone continuous updates and improvements. The latest version of WhatsApp exhibits significant differences in features and settings compared to its predecessors, particularly in conversations, images, video recordings, and other aspects. Consequently, this research focuses on analyzing artifacts that can aid in forensic investigations. The study aims to extract artifacts related to conversation sessions, as well as media data such as audio files, contact numbers, photos, videos, and more. To achieve these objectives, various forensic tools will be employed to assist in the artifact search within the WhatsApp browser. The research adopts the NIST framework and utilizes forensic techniques like Autopsy and FTK Imager to read encrypted backup database files. These files contain valuable information such as deleted conversations, phone logs, photos, videos, and other data of interest. Analyzing the artifacts from the WhatsApp browser version contributes to forensic activities, providing valuable insights into the evidence that can be obtained from conversations and media files. By leveraging forensic tools and techniques, forensic practitioners can effectively retrieve and analyze data from the encrypted backup database files. In summary, this research explores the artifacts within the WhatsApp browser version, sheds light on its distinct features, and presents a forensic approach utilizing the NIST framework and forensic tools like Autopsy and FTK Imager to examine encrypted backup database files containing crucial deleted data, conversations, and media files.
Potential of marine algae polysaccharides as bioactive agents in dental polymers: Potensi polisakarida alga laut sebagai agen bioaktif dalam polimer kedokteran gigi Ramadhani, Erika; Damayanti, Yusnita; Zakiyah, Shohwah; Indriani, Lenni
Makassar Dental Journal Vol. 14 No. 3 (2025): Volume 14 Issue 3 December 2025
Publisher : Makassar Dental Journal PDGI Makassar

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35856/mdj.v14i3.1337

Abstract

The use of natural biomaterials in dentistry has grown significantly in recent decades due to increasing demand for bioactive, bio-compatible, and environmentally friendly materials. Marine algae-derived polysaccharides—such as alginate, fucoidan, carra-geenan, ulvan, and agarose—have emerged as promising candidates due to their antibacterial, anti-inflammatory, antioxidant, and bioadhesive properties. This article reviews the potential of algal polysaccharides as foundational materials for bioactive po-lymers in dentistry. Their applications include regenerative scaffolds, local drug delivery systems, root canal filling materials, and membrane guided tissue regeneration. Studies show these polysaccharides are safe, biocompatible, and support tissue rege-neration and therapeutic outcomes in oral care. However, further in vivo and clinical research, along with standardized methods for extraction and chemical modification, are necessary to ensure consistent quality and clinical effectiveness.
Enhancing Digital Forensics with Cyber Kill Chain and 5W1H: A Case Study on Phishing Attacks Erika Ramadhani; Toto Raharjo
IJoICT (International Journal on Information and Communication Technology) Vol. 11 No. 1 (2025): Vol. 11 No. 1 Jun 2025
Publisher : School of Computing, Telkom University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21108/ijoict.v11i1.8966

Abstract

This research has combined the Cyber Kill Chain (CKC) model and the 5W1 H for detection and control of cybercrime such as phishing for the automation of digital forensic investigation. The most vital challenge in digital forensics is its evidence handling complexity, the lack of a standard because of diversified kinds of tools, and the non-availability of automated tools that systematically present information. Therefore, it provides a web-based framework to automate the investigation by referring to the attack stages of the CKC and identifies the contextual allegories of the incident like who, what, when, where, why, and how through the rule of 5W1H. It includes the problem identification method, collecting and classifying the digital artifacts according to CKC stages, in-depth analysis with the 5W1H framework, and visualization of investigation results for further understanding. A case study of a phishing attack on the Kredivo application was used to evaluate the effectiveness of this approach, where the CKC stages from reconnaissance to actions on objectives were implemented to analyze artifacts such as activity logs and phishing data. The results show that the integration of CKC and 5W1H improves analysis accuracy, generates comprehensive visualizations of artifacts, and strengthens response to attacks. It is expected that this finding would mean a highly significant change in the productivity of forensic investigations by making it easier for analysts and preparing proper documentation education for the court.
Implementasi Metode Lean Startup dalam Pengembangan Ide Bisnis Aplikasi Golek Kost Berbasis Mobile Kafita Wardhahani; Erika Ramadhani
Jurnal Sistem Komputer dan Informatika (JSON) Vol. 3 No. 4 (2022): Juni 2022
Publisher : Universitas Budi Darma

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30865/json.v3i4.4261

Abstract

The need for housing (boarding houses) for students is a basic need and becomes a significant consideration when deciding to study in a particular city. So far, students have obtained information related to boarding houses manually to meet the needs associated with the necessary furniture and in carrying out the moving process. With everything still manual, it takes longer and is more difficult to find a boarding house that fits the student’s needs. To help solve existing problems, a mobile-based application called GOLEK KOST was made. The application is a form of digital innovation to make it easier for students to obtain information related to boarding houses, including prices, locations and boarding facilities, buying, and selling furniture, transportation services, or moving services in the Yogyakarta area. Developing this application business idea applies the Lean Startup method, which consists of three stages: Market Validation, Product Validation, and Business Validation. This method focuses on developing applications based on feedback obtained from potential users so that later the resulting application will meet the needs of potential users. In the product validation, the results obtained are 37% for the boarding information feature, 33.3% for the transportation service feature, and 29.6% for the furniture sale and purchase quality.
Implementasi Metode Design Sprint dalam Perancangan UI/UX Aplikasi Golek Kost Berbasis Mobile Nur Ifani Khoirunisa; Erika Ramadhani
Jurnal Sistem Komputer dan Informatika (JSON) Vol. 3 No. 4 (2022): Juni 2022
Publisher : Universitas Budi Darma

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30865/json.v3i4.4262

Abstract

The city of Yogyakarta is known as the City of Students or the City of Education because of the many educational centers that stand there. This has made students from outside the region interested in studying in Yogyakarta. The large number of students studying in Yogyakarta makes many people in Yogyakarta open boarding and renting businesses which is a necessity for students from outside the region who come to take their education. The difficulty in finding a boarding house or renting a place that fits the needs is the main obstacle faced due to the lack of information received. In the current era, the digitization process has developed rapidly because most people spend their time holding smartphones, so many mobile-based applications can help with all their needs and needs. One of them is a boarding house search application, e-commerce, and delivery services. However, these three service features are not yet in one application. This makes Golek Kost want to create a mobile-based application that consists of these three features, to make it easier for students to search for boarding houses, boarding furniture, and transportation/moving services. The method used in designing the Golek Kost application is the design sprint. In this method there are four stages, namely: understanding (understanding), divergent (developing), decide (decide), prototype (create a prototype), and validate (validation). The final result of this research is the validation of the prototype design from the UI and UX side, after getting feedback from potential users. Making this prototype design will be made using Figma tools.
Implementasi Bcrypt dengan SHA-256 pada Password Pengguna Aplikasi Golek Kost Rynaldy Shulton Giffary; Erika Ramadhani
Jurnal Sistem Komputer dan Informatika (JSON) Vol. 3 No. 4 (2022): Juni 2022
Publisher : Universitas Budi Darma

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30865/json.v3i4.4285

Abstract

Brute force is the breaking of passwords in the SHA¬-256 algorithm, so that systems using this algorithm are easy to retrieve important data. In addition there is MD5 which can cause collusion. However, there is an algorithm that can withstand brute force attacks, namely bcrypt. Personal data security is a top priority on every system. Brute force is a cyber crime that needs to be watched out for. The purpose of this study is to examine the bcrypt algorithm used as a password in order to be able to survive brute force attacks. Because bcrypt has a cost and a salt value
PENINGKATAN KETERAMPILAN COMPUTATIONAL THINKING DAN PENGEMBANGAN DIRI SISWA RUMAH BELAJAR ALIYAH Sofia, Nanum; Ramadhani, Erika; Rahayu, Nur Wijayaning
JMM (Jurnal Masyarakat Mandiri) Vol 10, No 2 (2026): April
Publisher : Universitas Muhammadiyah Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31764/jmm.v10i2.37420

Abstract

Abstrak: Pendidikan homeschooling merupakan metode pembelajaran alternatif yang memberikan fleksibilitas dalam metode belajar. Namun, siswa homeschooling seringkali menghadapi tantangan dalam persaingan dengan siswa dari sekolah umum, terutama dalam ujian masuk perguruan tinggi. Pengabdian masyarakat bertujuan memberikan pelatihan keterampilan computational thinking (CT) dan pengembangan diri bagi 20 siswa Rumah Belajar Aliyah (RBA) dalam menghadapi tantangan tersebut. Kegiatan pengabdian masyarakat ini bertujuan membentuk dan meningkatkan pengembangan diri siswa Rumah Belajar Aliyah (RBA), baik secara akademik maupun emosional, yang berperan penting dalam mempersiapkan mereka untuk sukses. Metode yang digunakan ialah pelatihan soft skill tentang pengembangan diri dan computational thinking skill. Kegiatan ini juga memberikan hibah bantuan berupa buku, LCD projector, serta microfon. Evaluasi kegiatan dilakukan melalui pre-test dan post-test, observasi, wawancara, serta self-report untuk menilai perubahan kemampuan, kepercayaan diri, dan tingkat insecure peserta. Selain itu, evaluasi juga mencakup penilaian presentasi, skoring penugasan, dan penilaian lembar kerja siswa. Hasil pelatihan menunjukkan bahwa keterampilan CT dan kepercayaan diri siswi RBA meningkat sebesar 75%. Hasil kegiatan ini menyimpulkan bahwa pelatihan CT dan pengembangan diri bagi siswa RBA berdampak signifikan. Dengan demikian, CT dan pengembangan diri dipandang urgen untuk masuk dalam kurikulum homeschooling.Abstract: Homeschooling is an alternative learning method that provides flexibility in learning methods. However, homeschooled students often face challenges in competing with students from public schools, especially in college entrance exams. Community service aims to provide computational thinking (CT) skills training and self-development for 20 students of Rumah Belajar Aliyah (RBA) in facing these challenges. This community service activity aims to shape and improve the personal development of Rumah Belajar Aliyah (RBA) students, both academically and emotionally, which plays an important role in preparing them for success. The methods used are soft skills training on personal development and computational thinking skills. This activity also provided grants in the form of books, LCD projectors, and microphones. The activity was evaluated through pre-tests and post-tests, observations, interviews, and self-reports to assess changes in the participants' abilities, confidence, and insecurity levels. In addition, the evaluation also included presentation assessments, assignment scoring, and student worksheet assessments. The training results showed that the CT skills and confidence of RBA students increased by 75%. The results of this activity concluded that CT training and self-development for RBA students had a significant impact. Thus, CT and self-development are considered urgent to be included in the homeschooling curriculum.
Co-Authors Afif Wika Sadewa Ahmad Luthfi Al Amany, Sarah Ulfah Amrullah Sidiq Andri Ruslam Anwarudin Kurniawan Ardian Dwi Rifai Ashshidiqie Rachman, Mikhail Bahirah, Shabrina Hazrati Damayanti, Yusnita Dedy Hariyadi Dwi Kurnia Wibowo Fauzan Awanda Alviansyah Fayruz Rahma Fietyata Yudha Handika Irawan Helmy Dzulfikar Hidayati, Anisa Nur Imam Riadi Irfan Adristi, Fikri Kafita Wardhahani Kusuma, Permadi Lenni Indriani, Lenni Mardlatillah, Hanifah Muhamad Maulana Muhammad Nur Adhar Naufal, Reyhandri Muhammad Nur Ifani Khoirunisa Nur Marjianto, Rohsan Nurdin, Rusydi Prayudi , Yudi R, Zulihsan Raharjo, Toto Rahayu, Nur Wijayaning Rahmadi Syahputra, Rosi Rynaldy Shulton Giffary Santicho, Desylo Septina, Annisa Dinda Shofie Mauladany Aziz Sisdarmanto Adinandra, Sisdarmanto Sofia, Nanum Toto Raharjo Utomo, Dicky Satrio Ikhsan Wahluf Abidian Waldi Nur Hamzah Yudi prayudi Yusroni Romadhona, Frendi Yusuf Halim, Muhammad Zakiyah, Shohwah