scholarly journals IMPLEMENTASI PROTEKSI CLIENT-SIDE PADA PRIVATE CLOUD STORAGE NEXTCLOUD

2019 ◽  
Vol 2 (1) ◽  
pp. 16
Author(s):  
Dedy Hariyadi ◽  
Imam Puji Santoso ◽  
Ramadhana Saputra

Saat ini hampir setiap perangkat terhubung dengan teknologi komputasi awan. Teknologi komputasi awan yang menawarkan layanan menarik adalah Cloud Storage seperti Google Drive, Dropbox, One Drive, Mega, dan lain-lain. Teknologi Cloud Storage semacam itu dapat diterapkan di lingkungan private atau on-premise. Peranti lunak Cloud Storage yang dapat diinstall di lingkungan private diantaranya, OwnCloud, Nextcloud, SeaFile, dan lain-lain. Implementasi Cloud Storage perlu diwaspadai karena memiliki celah keamanan saat transmisi data dari client ke server atau sebaliknya dan tidak terproteksinya berkas yang tersimpan pada Cloud Storage server. Pada penelitian ini menunjukkan hasil pengujian kerentanan menyimpan berkas dan direktori di penyedia Cloud Storage berserta memberikan solusi mengatasi keamanan tersebut.

2020 ◽  
Vol 7 (3) ◽  
pp. 521
Author(s):  
Gandeva Bayu Satrya ◽  
A Ahmad Nasrullah

<p>Sistem penyimpanan melalui cloud memiliki banyak keunggulan, seperti kemampuan akses dari lokasi manapun serta kemudahan penyimpanan pencadangan file-file pada komputer dan smartphone. Terdapat banyak pilihan layanan penyimpanan melalui cloud, seperti Dropbox, Microsoft OneDrive, Google Drive, dan Box. Dari beberapa jenis layanan peyimpanan tersebut Box adalah satu-satunya layanan penyimpanan cloud yang mampu menjamin tingkat reliability uptime hingga 99.9%. Awalnnya, Box hanya ditujukan untuk kegiatan bisnis saja, namun sekarang Box dapat digunakan oleh pengguna secara umum. Selain memberikan pengaruh yang positif, pertumbuhan penggunaan teknologi layanan penyimpanan cloud juga telah memberikan peningkatan dalam peluang terjadinya kejahatan di dunia maya. Forensik digital merupakan solusi terbaru dalam mengamati keamanan sistem dan jaringan, sementara forensik bergerak adalah pengembangan forensic digital yang sepenuhnya difokuskan pada media smartphone. Forensik bergerak dapat dilakukan dalam dua sisi, yaitu server dan client. Studi kasus dalam penelitian ini berfokus pada penggunaan smartphone OS Android yang terinstal Box sebagai layanan penyimpanan cloud. Sedangkan tujuan utama dari penelitian ini adalah untuk menyediakan sebuah metode forensik bergerak untuk menemukan artefak pada smartphone Android yang telah terinstal dengan aplikasi Box.</p><p><em><strong>Abstract</strong></em></p><p class="Judul2"><em>Storing files in a cloud has many advantages, such as the ability to access them from any location and to keep backups of those files on computers and smartphones. There are many choices for cloud storage services, such as Dropbox, Microsoft OneDrive, Google Drive, and Box. Of these, Box is the only cloud storage service that guarantees uptime reliability 99.99% of the time. At first, Box was intended for business use only, but now it is also freely available for public use. Growth in cloud storage technology use has also resulted in increased opportunities for cybercrime to take place. Digital forensics is the latest solution for system and network security observers, while mobile forensics is a development of digital forensics that is fully focused on smartphone media. Mobile forensics can be performed on both the server and client sides. In this research, mobile forensics was performed on the client side. The case study in this paper focused on an Android operating system </em><em>(OS)</em><em> smartphone using Box cloud storage. The purpose of this study was to provide a mobile forensics method for finding artifacts on smartphones that have a Box application installed.</em></p><p><em><strong><br /></strong></em></p>


Author(s):  
Gandeva Bayu Satrya

The rapid development of cloud storage technology paired with the prevalence of smartphone usage presents wide-ranging challenges for digital forensics practitioners. Data are more easily uploaded and shared between multiple devices and across multiple platforms. So, it has increased the opportunities for criminality. Criminality undertaken in cloud computing can be directly seen on logs stored on the cloud storage server, which records user activity. However, because of user privacy protection, these logs cannot be easily used as evidence in court. This issue emphasizes the need for a reliable means of identifying, acquiring, and preserving evidential data from the client-side. This study identifies the data artifacts of a user accessing Dropbox via smartphone (Android Lollipop and Android Nougat). The data are from performing several common activities such as installing, signing up, uploading, downloading, sharing, and others. About 14 artifacts are identified by documenting the Dropbox client database changing contents as these activities are carried out. This study increases knowledge of the artifacts that are leftover by Dropbox client on Android smartphones. The results propose that these methods can be used by digital forensics investigators in carrying out investigations and cyberlaw practitioners as guidance in criminal cases.


2017 ◽  
Vol 10 (2) ◽  
Author(s):  
Irfan Santiko ◽  
Rahman Rosidi ◽  
Seta Agung Wibawa

Information ◽  
2021 ◽  
Vol 12 (4) ◽  
pp. 142
Author(s):  
Weijing You ◽  
Lei Lei ◽  
Bo Chen ◽  
Limin Liu

By only storing a unique copy of duplicate data possessed by different data owners, deduplication can significantly reduce storage cost, and hence is used broadly in public clouds. When combining with confidentiality, deduplication will become problematic as encryption performed by different data owners may differentiate identical data which may then become not deduplicable. The Message-Locked Encryption (MLE) is thus utilized to derive the same encryption key for the identical data, by which the encrypted data are still deduplicable after being encrypted by different data owners. As keys may be leaked over time, re-encrypting outsourced data is of paramount importance to ensure continuous confidentiality, which, however, has not been well addressed in the literature. In this paper, we design SEDER, a SEcure client-side Deduplication system enabling Efficient Re-encryption for cloud storage by (1) leveraging all-or-nothing transform (AONT), (2) designing a new delegated re-encryption (DRE), and (3) proposing a new proof of ownership scheme for encrypted cloud data (PoWC). Security analysis and experimental evaluation validate security and efficiency of SEDER, respectively.


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