System log files contain valuable evidence pertaining to computer attacks. However, the log files are often massive, and much of the information they contain is not relevant to the investigation. Furthermore, the files almost always have a flat structure, which limits the ability to query them. Thus, digital forensic investigators find it extremely difficult and time consuming to extract and an...

The recent advances in multimedia technology have made the manipulation of digital images, videos or audio files easy. On the one hand the broad availability of these new capabilities enabled numerous new applications. On the other hand, for the same reasons, digital media can easily be forged by almost anyone. To counteract this risk, fragile watermarks were proposed to protect the integrity a...

Speech encryption approaches are used to prevent eavesdropping, tracking, and other security concerns in speech communication. In this paper, a new cryptography algorithm is proposed encrypt digital files. Initially, the files rearranged as cubic model with six sides scatter data. Furthermore, each side encrypted by random keys that created using two chaotic maps (Hénon Gingerbread maps). Encry...

Nowadays, a vast amount of information concerning all aspects of human activity is digitised with the goal of profit. One of the most prominent examples is the music industry that now markets audio data mainly in the form of MPEG Audio Layer 3 files rather than on CDs or DVDs. The MP3 audio files are distributed as digital files through various communication means and can easily be copied and r...

Researchers from academic institutions and the corporate sector rely heavily on scholarly digital libraries for accessing journal articles and conference proceedings. Primarily downloaded in the form of PDF files, there is a risk that these documents may be compromised by attackers. PDF files have many capabilities that have been widely used for malicious operations. Attackers increasingly take...

Forensically significant digital trace evidence that is frequently present in sectors of digital media not associated with allocated or deleted files. Modern digital forensic tools generally do not decompress such data unless a specific file with a recognized file type is first identified, potentially resulting in missed evidence. Email addresses are encoded differently for different file forma...

Internet use, intelligent communication tools, and social media have all become an integral part of our daily life as a result of rapid developments in information technology. However, this widespread use increases crimes committed in the digital environment. Therefore, digital forensics, dealing with various crimes committed in digital environment, has become an important research topic. It is...

This paper describes a digital forensic tool that uses an FPGA-based embedded software application to identify and track contraband digital files shared using the BitTorrent protocol. The system inspects each packet on a network for a BitTorrent Handshake message, extracts the “info hash” of the file being shared, compares the hash against a list of known contraband files and, in the event of a...