Picture archiving and communication systems (PACS) require highspeed networks to transmit large image files between components. While transmitting data through public networks, privacy, authenticity, and integrity have always been some critical problems. Recent years, IPv6 brings significant improvements in mechanisms for assuring a higher level of security. In this paper, we first analyzes how...

Nowadays various software tools have been developed for the purpose of creating encrypted volume files. Many of those tools are open source and freely available on the internet. Because of that, the probability of finding encrypted files which could contain forensically useful information has dramatically increased. While decoding these files without the key is still a major challenge, the simp...

A plug-in for the Machine Learning Environment Yale has been developed that automatically structures digital music corpora into similarity clusters using a SOM on the basis of features that are extracted from files in a test corpus. Perceptionally similar music files are represented in the same cluster. A human user was asked to rate music files according to their subjective similarity. Compare...

In this paper we present a practical method for recovery of deleted files from a locally accessible data storage, such as an HDD, with an optional recording of evidential information about the recovery process. Our approach puts strong emphasis on the practical aspect of file recovery and evidence recording as well as the accessibility of the required tools. This makes it useful for a variety o...

As virtualization becomes more prevalent in the enterprise and in personal computing, there is a great need to understand the technology as well as its ramifications for recovering digital evidence. This paper focuses on trace evidence related to the installation and execution of virtual machines (VMs) on a host machine. It provides useful information regarding the types and locations of files ...

The Visual Understanding Environment (VUE) is a concept mapping tool that enables faculty and students to successfully integrate digital resources into their teaching and learning. VUE provides a visual environment for structuring, presenting, and sharing digital information and an OKI-compliant OSID implementation for connecting to FEDORA-based digital repositories. Using VUE, faculty and stud...

Java programs distributed through Internet are now suffering from program theft. It is because Java programs can be easily decomposed into reusable class files and even decompiled into source code by program users. In this paper we propose a practical method that discourages program theft by embedding Java programs with a digital watermark. Embedding a program developer’s copyright notation as ...

For digital forensics, eliminating the uninteresting is often more critical than finding the interesting. We discuss methods exploiting the metadata of a large corpus. Tests were done with an international corpus of 262.7 million files obtained from 4018 drives. For malware investigations, we show that using a Bayesian ranking formula on metadata can increase malware recall by 5.1 while increas...

Stegnography is about hiding the information whether the hiding thing is an image only. We should encrypt the information before hiding it. Many different formats of files can be used to hide the information but digital files are most widely used because of their frequency on internet. There are varieties of stegnography tools available with their own strength and weaknesses. This paper is a gl...