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Kebutuhan terhadap informasi menjadikan smartphone sebagai perangkat yang harus dimiliki oleh setiap orang. Teknologi smartphone memudahkan penggunanya dalam mengakses dan menyebarkan informasi. Di antara kemudahan lain yang ditawarkan teknologi smartphone bagi penggunanya adalah melalui fitur berteknologi NFC. Fitur NFC memudahkan pengguna untuk berbagi data maupun informasi melalui tiga mode operasi yaitu reader/writer, peer to peer, dan card emulation. Ketika mengakses atau menyebarkan informasi, dan mengunduh berkas dari situs internet, di antara cara yang paling umum dilakukan pengguna smartphone adalah membuka web browser dan memasukkan alamat URL. Hal tersebut tentu tidak efisien. Tujuan dilakukannya penelitian ini adalah memanfaatkan teknologi NFC dalam mengakses atau menyebarkan informasi, dan mengunduh berkas melalui operasi reader/writer URL pada tag NFC. Adapun tahapan-tahapan yang dilakukan dalam mencapai tujuan penelitian yaitu tinjauan pustaka, analisis kebutuhan, perancangan, dan pemrograman NFC, serta implementasi dan pengujian. Hasil dari penelitian ialah URL berhasil disematkan (writer) dan diakses (reader) melalui tag NFC. Dibutuhkan waktu 15 sampai 20 detik untuk mengakses URL pada tag NFC. Melalui penelitian ini, tag NFC dapat dimanfaatkan untuk mengakses atau menyebarkan informasi, dan mengunduh berkas melalui smartphone yang terintegrasi teknologi NFC melalui operasi sederhana.

An audio recorder is one of the multimedia content that is often found at the crime scene and is used as evidence in the trial process. Audio recorders that can be made as legal evidence in court must follow the rules and audio forensic standards that apply in the process of obtaining the evidence, this is because audio digital evidence is very easy to manipulate. The forensic audio investigation process requires a framework that can be used as a reference in the investigation process. However, at present, the developing audio forensic focus more on analyzing audio forensic techniques and does not provide more specific stages in handling forensic audio from the scene of the case to the trial process. This research focuses on developing the audio forensic framework by implementing the Systems Development Life Cycle (SDLC) in the process of developing the forensic audio framework. Systems Development Life Cycle (SDLC) has stages of planning, analysis, design, implementation, and maintenance that are often used as references in the process of making and developing systems. In other words, the implementation of this method will enable researchers to develop an audio forensic framework that can be used as a standard in conducting the forensic audio investigation process.Keywords—Audio Recorder, Audio Forensics, Framework, SDLCDOI : 10.5281/zenodo.2528444

The increasing of cybercrime means an increase in the number of digital evidences produced in these criminal activities. Also, to pay attention to the security and integrity of digital data, the construction of digital evidence storage must pay attention to the need for convenience in adding storage and the need for investigators to avoid geographical problems in carrying out their duties. An ideal implementation of the problem is the development of network-based digital evidence storage using the Software-Defined Storage to build a clustered storage system. In this study, we build a clustered storage system using Ceph that will be functioned as digital evidence storage. Ceph is a Software-Defined Storage which is designed to provide excellent performance, reliability and scalability. On the other hand, since digital evidence is fragile, then the security of storage system must also be considered so that the stored digital evidence in the storage system can be accepted in court. The security includes aspects of confidentiality, integrity and availability aspects. We were able to build a storage system using Ceph and as a result, our system storage has met the aforementioned scalability, confidentiality, integrity and availability aspects. The storage system is expected to contribute in terms of digital evidence storage and preservations.